diff options
Diffstat (limited to 'gc/cord')
| -rw-r--r-- | gc/cord/cordbscs.c | 915 | ||||
| -rw-r--r-- | gc/cord/cordprnt.c | 396 | ||||
| -rw-r--r-- | gc/cord/cordtest.c | 229 | ||||
| -rw-r--r-- | gc/cord/cordxtra.c | 621 | ||||
| -rw-r--r-- | gc/cord/de.c | 603 | ||||
| -rw-r--r-- | gc/cord/de_cmds.h | 33 | ||||
| -rwxr-xr-x | gc/cord/de_win.ICO | bin | 766 -> 0 bytes | |||
| -rw-r--r-- | gc/cord/de_win.RC | 78 | ||||
| -rw-r--r-- | gc/cord/de_win.c | 366 | ||||
| -rw-r--r-- | gc/cord/de_win.h | 103 |
10 files changed, 0 insertions, 3344 deletions
diff --git a/gc/cord/cordbscs.c b/gc/cord/cordbscs.c deleted file mode 100644 index 9fc894d..0000000 --- a/gc/cord/cordbscs.c +++ /dev/null @@ -1,915 +0,0 @@ -/* - * Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - * - * Author: Hans-J. Boehm (boehm@parc.xerox.com) - */ -/* Boehm, October 3, 1994 5:19 pm PDT */ -# include "gc.h" -# include "cord.h" -# include <stdlib.h> -# include <stdio.h> -# include <string.h> - -/* An implementation of the cord primitives. These are the only */ -/* Functions that understand the representation. We perform only */ -/* minimal checks on arguments to these functions. Out of bounds */ -/* arguments to the iteration functions may result in client functions */ -/* invoked on garbage data. In most cases, client functions should be */ -/* programmed defensively enough that this does not result in memory */ -/* smashes. */ - -typedef void (* oom_fn)(void); - -oom_fn CORD_oom_fn = (oom_fn) 0; - -# define OUT_OF_MEMORY { if (CORD_oom_fn != (oom_fn) 0) (*CORD_oom_fn)(); \ - ABORT("Out of memory\n"); } -# define ABORT(msg) { fprintf(stderr, "%s\n", msg); abort(); } - -typedef unsigned long word; - -typedef union { - struct Concatenation { - char null; - char header; - char depth; /* concatenation nesting depth. */ - unsigned char left_len; - /* Length of left child if it is sufficiently */ - /* short; 0 otherwise. */ -# define MAX_LEFT_LEN 255 - word len; - CORD left; /* length(left) > 0 */ - CORD right; /* length(right) > 0 */ - } concatenation; - struct Function { - char null; - char header; - char depth; /* always 0 */ - char left_len; /* always 0 */ - word len; - CORD_fn fn; - void * client_data; - } function; - struct Generic { - char null; - char header; - char depth; - char left_len; - word len; - } generic; - char string[1]; -} CordRep; - -# define CONCAT_HDR 1 - -# define FN_HDR 4 -# define SUBSTR_HDR 6 - /* Substring nodes are a special case of function nodes. */ - /* The client_data field is known to point to a substr_args */ - /* structure, and the function is either CORD_apply_access_fn */ - /* or CORD_index_access_fn. */ - -/* The following may be applied only to function and concatenation nodes: */ -#define IS_CONCATENATION(s) (((CordRep *)s)->generic.header == CONCAT_HDR) - -#define IS_FUNCTION(s) ((((CordRep *)s)->generic.header & FN_HDR) != 0) - -#define IS_SUBSTR(s) (((CordRep *)s)->generic.header == SUBSTR_HDR) - -#define LEN(s) (((CordRep *)s) -> generic.len) -#define DEPTH(s) (((CordRep *)s) -> generic.depth) -#define GEN_LEN(s) (CORD_IS_STRING(s) ? strlen(s) : LEN(s)) - -#define LEFT_LEN(c) ((c) -> left_len != 0? \ - (c) -> left_len \ - : (CORD_IS_STRING((c) -> left) ? \ - (c) -> len - GEN_LEN((c) -> right) \ - : LEN((c) -> left))) - -#define SHORT_LIMIT (sizeof(CordRep) - 1) - /* Cords shorter than this are C strings */ - - -/* Dump the internal representation of x to stdout, with initial */ -/* indentation level n. */ -void CORD_dump_inner(CORD x, unsigned n) -{ - register size_t i; - - for (i = 0; i < (size_t)n; i++) { - fputs(" ", stdout); - } - if (x == 0) { - fputs("NIL\n", stdout); - } else if (CORD_IS_STRING(x)) { - for (i = 0; i <= SHORT_LIMIT; i++) { - if (x[i] == '\0') break; - putchar(x[i]); - } - if (x[i] != '\0') fputs("...", stdout); - putchar('\n'); - } else if (IS_CONCATENATION(x)) { - register struct Concatenation * conc = - &(((CordRep *)x) -> concatenation); - printf("Concatenation: %p (len: %d, depth: %d)\n", - x, (int)(conc -> len), (int)(conc -> depth)); - CORD_dump_inner(conc -> left, n+1); - CORD_dump_inner(conc -> right, n+1); - } else /* function */{ - register struct Function * func = - &(((CordRep *)x) -> function); - if (IS_SUBSTR(x)) printf("(Substring) "); - printf("Function: %p (len: %d): ", x, (int)(func -> len)); - for (i = 0; i < 20 && i < func -> len; i++) { - putchar((*(func -> fn))(i, func -> client_data)); - } - if (i < func -> len) fputs("...", stdout); - putchar('\n'); - } -} - -/* Dump the internal representation of x to stdout */ -void CORD_dump(CORD x) -{ - CORD_dump_inner(x, 0); - fflush(stdout); -} - -CORD CORD_cat_char_star(CORD x, const char * y, size_t leny) -{ - register size_t result_len; - register size_t lenx; - register int depth; - - if (x == CORD_EMPTY) return(y); - if (leny == 0) return(x); - if (CORD_IS_STRING(x)) { - lenx = strlen(x); - result_len = lenx + leny; - if (result_len <= SHORT_LIMIT) { - register char * result = GC_MALLOC_ATOMIC(result_len+1); - - if (result == 0) OUT_OF_MEMORY; - memcpy(result, x, lenx); - memcpy(result + lenx, y, leny); - result[result_len] = '\0'; - return((CORD) result); - } else { - depth = 1; - } - } else { - register CORD right; - register CORD left; - register char * new_right; - register size_t right_len; - - lenx = LEN(x); - - if (leny <= SHORT_LIMIT/2 - && IS_CONCATENATION(x) - && CORD_IS_STRING(right = ((CordRep *)x) -> concatenation.right)) { - /* Merge y into right part of x. */ - if (!CORD_IS_STRING(left = ((CordRep *)x) -> concatenation.left)) { - right_len = lenx - LEN(left); - } else if (((CordRep *)x) -> concatenation.left_len != 0) { - right_len = lenx - ((CordRep *)x) -> concatenation.left_len; - } else { - right_len = strlen(right); - } - result_len = right_len + leny; /* length of new_right */ - if (result_len <= SHORT_LIMIT) { - new_right = GC_MALLOC_ATOMIC(result_len + 1); - memcpy(new_right, right, right_len); - memcpy(new_right + right_len, y, leny); - new_right[result_len] = '\0'; - y = new_right; - leny = result_len; - x = left; - lenx -= right_len; - /* Now fall through to concatenate the two pieces: */ - } - if (CORD_IS_STRING(x)) { - depth = 1; - } else { - depth = DEPTH(x) + 1; - } - } else { - depth = DEPTH(x) + 1; - } - result_len = lenx + leny; - } - { - /* The general case; lenx, result_len is known: */ - register struct Concatenation * result; - - result = GC_NEW(struct Concatenation); - if (result == 0) OUT_OF_MEMORY; - result->header = CONCAT_HDR; - result->depth = depth; - if (lenx <= MAX_LEFT_LEN) result->left_len = lenx; - result->len = result_len; - result->left = x; - result->right = y; - if (depth > MAX_DEPTH) { - return(CORD_balance((CORD)result)); - } else { - return((CORD) result); - } - } -} - - -CORD CORD_cat(CORD x, CORD y) -{ - register size_t result_len; - register int depth; - register size_t lenx; - - if (x == CORD_EMPTY) return(y); - if (y == CORD_EMPTY) return(x); - if (CORD_IS_STRING(y)) { - return(CORD_cat_char_star(x, y, strlen(y))); - } else if (CORD_IS_STRING(x)) { - lenx = strlen(x); - depth = DEPTH(y) + 1; - } else { - register int depthy = DEPTH(y); - - lenx = LEN(x); - depth = DEPTH(x) + 1; - if (depthy >= depth) depth = depthy + 1; - } - result_len = lenx + LEN(y); - { - register struct Concatenation * result; - - result = GC_NEW(struct Concatenation); - if (result == 0) OUT_OF_MEMORY; - result->header = CONCAT_HDR; - result->depth = depth; - if (lenx <= MAX_LEFT_LEN) result->left_len = lenx; - result->len = result_len; - result->left = x; - result->right = y; - return((CORD) result); - } -} - - - -CORD CORD_from_fn(CORD_fn fn, void * client_data, size_t len) -{ - if (len <= 0) return(0); - if (len <= SHORT_LIMIT) { - register char * result; - register size_t i; - char buf[SHORT_LIMIT+1]; - register char c; - - for (i = 0; i < len; i++) { - c = (*fn)(i, client_data); - if (c == '\0') goto gen_case; - buf[i] = c; - } - buf[i] = '\0'; - result = GC_MALLOC_ATOMIC(len+1); - if (result == 0) OUT_OF_MEMORY; - strcpy(result, buf); - result[len] = '\0'; - return((CORD) result); - } - gen_case: - { - register struct Function * result; - - result = GC_NEW(struct Function); - if (result == 0) OUT_OF_MEMORY; - result->header = FN_HDR; - /* depth is already 0 */ - result->len = len; - result->fn = fn; - result->client_data = client_data; - return((CORD) result); - } -} - -size_t CORD_len(CORD x) -{ - if (x == 0) { - return(0); - } else { - return(GEN_LEN(x)); - } -} - -struct substr_args { - CordRep * sa_cord; - size_t sa_index; -}; - -char CORD_index_access_fn(size_t i, void * client_data) -{ - register struct substr_args *descr = (struct substr_args *)client_data; - - return(((char *)(descr->sa_cord))[i + descr->sa_index]); -} - -char CORD_apply_access_fn(size_t i, void * client_data) -{ - register struct substr_args *descr = (struct substr_args *)client_data; - register struct Function * fn_cord = &(descr->sa_cord->function); - - return((*(fn_cord->fn))(i + descr->sa_index, fn_cord->client_data)); -} - -/* A version of CORD_substr that simply returns a function node, thus */ -/* postponing its work. The fourth argument is a function that may */ -/* be used for efficient access to the ith character. */ -/* Assumes i >= 0 and i + n < length(x). */ -CORD CORD_substr_closure(CORD x, size_t i, size_t n, CORD_fn f) -{ - register struct substr_args * sa = GC_NEW(struct substr_args); - CORD result; - - if (sa == 0) OUT_OF_MEMORY; - sa->sa_cord = (CordRep *)x; - sa->sa_index = i; - result = CORD_from_fn(f, (void *)sa, n); - ((CordRep *)result) -> function.header = SUBSTR_HDR; - return (result); -} - -# define SUBSTR_LIMIT (10 * SHORT_LIMIT) - /* Substrings of function nodes and flat strings shorter than */ - /* this are flat strings. Othewise we use a functional */ - /* representation, which is significantly slower to access. */ - -/* A version of CORD_substr that assumes i >= 0, n > 0, and i + n < length(x).*/ -CORD CORD_substr_checked(CORD x, size_t i, size_t n) -{ - if (CORD_IS_STRING(x)) { - if (n > SUBSTR_LIMIT) { - return(CORD_substr_closure(x, i, n, CORD_index_access_fn)); - } else { - register char * result = GC_MALLOC_ATOMIC(n+1); - - if (result == 0) OUT_OF_MEMORY; - strncpy(result, x+i, n); - result[n] = '\0'; - return(result); - } - } else if (IS_CONCATENATION(x)) { - register struct Concatenation * conc - = &(((CordRep *)x) -> concatenation); - register size_t left_len; - register size_t right_len; - - left_len = LEFT_LEN(conc); - right_len = conc -> len - left_len; - if (i >= left_len) { - if (n == right_len) return(conc -> right); - return(CORD_substr_checked(conc -> right, i - left_len, n)); - } else if (i+n <= left_len) { - if (n == left_len) return(conc -> left); - return(CORD_substr_checked(conc -> left, i, n)); - } else { - /* Need at least one character from each side. */ - register CORD left_part; - register CORD right_part; - register size_t left_part_len = left_len - i; - - if (i == 0) { - left_part = conc -> left; - } else { - left_part = CORD_substr_checked(conc -> left, i, left_part_len); - } - if (i + n == right_len + left_len) { - right_part = conc -> right; - } else { - right_part = CORD_substr_checked(conc -> right, 0, - n - left_part_len); - } - return(CORD_cat(left_part, right_part)); - } - } else /* function */ { - if (n > SUBSTR_LIMIT) { - if (IS_SUBSTR(x)) { - /* Avoid nesting substring nodes. */ - register struct Function * f = &(((CordRep *)x) -> function); - register struct substr_args *descr = - (struct substr_args *)(f -> client_data); - - return(CORD_substr_closure((CORD)descr->sa_cord, - i + descr->sa_index, - n, f -> fn)); - } else { - return(CORD_substr_closure(x, i, n, CORD_apply_access_fn)); - } - } else { - char * result; - register struct Function * f = &(((CordRep *)x) -> function); - char buf[SUBSTR_LIMIT+1]; - register char * p = buf; - register char c; - register int j; - register int lim = i + n; - - for (j = i; j < lim; j++) { - c = (*(f -> fn))(j, f -> client_data); - if (c == '\0') { - return(CORD_substr_closure(x, i, n, CORD_apply_access_fn)); - } - *p++ = c; - } - *p = '\0'; - result = GC_MALLOC_ATOMIC(n+1); - if (result == 0) OUT_OF_MEMORY; - strcpy(result, buf); - return(result); - } - } -} - -CORD CORD_substr(CORD x, size_t i, size_t n) -{ - register size_t len = CORD_len(x); - - if (i >= len || n <= 0) return(0); - /* n < 0 is impossible in a correct C implementation, but */ - /* quite possible under SunOS 4.X. */ - if (i + n > len) n = len - i; -# ifndef __STDC__ - if (i < 0) ABORT("CORD_substr: second arg. negative"); - /* Possible only if both client and C implementation are buggy. */ - /* But empirically this happens frequently. */ -# endif - return(CORD_substr_checked(x, i, n)); -} - -/* See cord.h for definition. We assume i is in range. */ -int CORD_iter5(CORD x, size_t i, CORD_iter_fn f1, - CORD_batched_iter_fn f2, void * client_data) -{ - if (x == 0) return(0); - if (CORD_IS_STRING(x)) { - register const char *p = x+i; - - if (*p == '\0') ABORT("2nd arg to CORD_iter5 too big"); - if (f2 != CORD_NO_FN) { - return((*f2)(p, client_data)); - } else { - while (*p) { - if ((*f1)(*p, client_data)) return(1); - p++; - } - return(0); - } - } else if (IS_CONCATENATION(x)) { - register struct Concatenation * conc - = &(((CordRep *)x) -> concatenation); - - - if (i > 0) { - register size_t left_len = LEFT_LEN(conc); - - if (i >= left_len) { - return(CORD_iter5(conc -> right, i - left_len, f1, f2, - client_data)); - } - } - if (CORD_iter5(conc -> left, i, f1, f2, client_data)) { - return(1); - } - return(CORD_iter5(conc -> right, 0, f1, f2, client_data)); - } else /* function */ { - register struct Function * f = &(((CordRep *)x) -> function); - register size_t j; - register size_t lim = f -> len; - - for (j = i; j < lim; j++) { - if ((*f1)((*(f -> fn))(j, f -> client_data), client_data)) { - return(1); - } - } - return(0); - } -} - -#undef CORD_iter -int CORD_iter(CORD x, CORD_iter_fn f1, void * client_data) -{ - return(CORD_iter5(x, 0, f1, CORD_NO_FN, client_data)); -} - -int CORD_riter4(CORD x, size_t i, CORD_iter_fn f1, void * client_data) -{ - if (x == 0) return(0); - if (CORD_IS_STRING(x)) { - register const char *p = x + i; - register char c; - - for(;;) { - c = *p; - if (c == '\0') ABORT("2nd arg to CORD_riter4 too big"); - if ((*f1)(c, client_data)) return(1); - if (p == x) break; - p--; - } - return(0); - } else if (IS_CONCATENATION(x)) { - register struct Concatenation * conc - = &(((CordRep *)x) -> concatenation); - register CORD left_part = conc -> left; - register size_t left_len; - - left_len = LEFT_LEN(conc); - if (i >= left_len) { - if (CORD_riter4(conc -> right, i - left_len, f1, client_data)) { - return(1); - } - return(CORD_riter4(left_part, left_len - 1, f1, client_data)); - } else { - return(CORD_riter4(left_part, i, f1, client_data)); - } - } else /* function */ { - register struct Function * f = &(((CordRep *)x) -> function); - register size_t j; - - for (j = i; ; j--) { - if ((*f1)((*(f -> fn))(j, f -> client_data), client_data)) { - return(1); - } - if (j == 0) return(0); - } - } -} - -int CORD_riter(CORD x, CORD_iter_fn f1, void * client_data) -{ - return(CORD_riter4(x, CORD_len(x) - 1, f1, client_data)); -} - -/* - * The following functions are concerned with balancing cords. - * Strategy: - * Scan the cord from left to right, keeping the cord scanned so far - * as a forest of balanced trees of exponentialy decreasing length. - * When a new subtree needs to be added to the forest, we concatenate all - * shorter ones to the new tree in the appropriate order, and then insert - * the result into the forest. - * Crucial invariants: - * 1. The concatenation of the forest (in decreasing order) with the - * unscanned part of the rope is equal to the rope being balanced. - * 2. All trees in the forest are balanced. - * 3. forest[i] has depth at most i. - */ - -typedef struct { - CORD c; - size_t len; /* Actual length of c */ -} ForestElement; - -static size_t min_len [ MAX_DEPTH ]; - -static int min_len_init = 0; - -int CORD_max_len; - -typedef ForestElement Forest [ MAX_DEPTH ]; - /* forest[i].len >= fib(i+1) */ - /* The string is the concatenation */ - /* of the forest in order of DECREASING */ - /* indices. */ - -void CORD_init_min_len() -{ - register int i; - register size_t last, previous, current; - - min_len[0] = previous = 1; - min_len[1] = last = 2; - for (i = 2; i < MAX_DEPTH; i++) { - current = last + previous; - if (current < last) /* overflow */ current = last; - min_len[i] = current; - previous = last; - last = current; - } - CORD_max_len = last - 1; - min_len_init = 1; -} - - -void CORD_init_forest(ForestElement * forest, size_t max_len) -{ - register int i; - - for (i = 0; i < MAX_DEPTH; i++) { - forest[i].c = 0; - if (min_len[i] > max_len) return; - } - ABORT("Cord too long"); -} - -/* Add a leaf to the appropriate level in the forest, cleaning */ -/* out lower levels as necessary. */ -/* Also works if x is a balanced tree of concatenations; however */ -/* in this case an extra concatenation node may be inserted above x; */ -/* This node should not be counted in the statement of the invariants. */ -void CORD_add_forest(ForestElement * forest, CORD x, size_t len) -{ - register int i = 0; - register CORD sum = CORD_EMPTY; - register size_t sum_len = 0; - - while (len > min_len[i + 1]) { - if (forest[i].c != 0) { - sum = CORD_cat(forest[i].c, sum); - sum_len += forest[i].len; - forest[i].c = 0; - } - i++; - } - /* Sum has depth at most 1 greter than what would be required */ - /* for balance. */ - sum = CORD_cat(sum, x); - sum_len += len; - /* If x was a leaf, then sum is now balanced. To see this */ - /* consider the two cases in which forest[i-1] either is or is */ - /* not empty. */ - while (sum_len >= min_len[i]) { - if (forest[i].c != 0) { - sum = CORD_cat(forest[i].c, sum); - sum_len += forest[i].len; - /* This is again balanced, since sum was balanced, and has */ - /* allowable depth that differs from i by at most 1. */ - forest[i].c = 0; - } - i++; - } - i--; - forest[i].c = sum; - forest[i].len = sum_len; -} - -CORD CORD_concat_forest(ForestElement * forest, size_t expected_len) -{ - register int i = 0; - CORD sum = 0; - size_t sum_len = 0; - - while (sum_len != expected_len) { - if (forest[i].c != 0) { - sum = CORD_cat(forest[i].c, sum); - sum_len += forest[i].len; - } - i++; - } - return(sum); -} - -/* Insert the frontier of x into forest. Balanced subtrees are */ -/* treated as leaves. This potentially adds one to the depth */ -/* of the final tree. */ -void CORD_balance_insert(CORD x, size_t len, ForestElement * forest) -{ - register int depth; - - if (CORD_IS_STRING(x)) { - CORD_add_forest(forest, x, len); - } else if (IS_CONCATENATION(x) - && ((depth = DEPTH(x)) >= MAX_DEPTH - || len < min_len[depth])) { - register struct Concatenation * conc - = &(((CordRep *)x) -> concatenation); - size_t left_len = LEFT_LEN(conc); - - CORD_balance_insert(conc -> left, left_len, forest); - CORD_balance_insert(conc -> right, len - left_len, forest); - } else /* function or balanced */ { - CORD_add_forest(forest, x, len); - } -} - - -CORD CORD_balance(CORD x) -{ - Forest forest; - register size_t len; - - if (x == 0) return(0); - if (CORD_IS_STRING(x)) return(x); - if (!min_len_init) CORD_init_min_len(); - len = LEN(x); - CORD_init_forest(forest, len); - CORD_balance_insert(x, len, forest); - return(CORD_concat_forest(forest, len)); -} - - -/* Position primitives */ - -/* Private routines to deal with the hard cases only: */ - -/* P contains a prefix of the path to cur_pos. Extend it to a full */ -/* path and set up leaf info. */ -/* Return 0 if past the end of cord, 1 o.w. */ -void CORD__extend_path(register CORD_pos p) -{ - register struct CORD_pe * current_pe = &(p[0].path[p[0].path_len]); - register CORD top = current_pe -> pe_cord; - register size_t pos = p[0].cur_pos; - register size_t top_pos = current_pe -> pe_start_pos; - register size_t top_len = GEN_LEN(top); - - /* Fill in the rest of the path. */ - while(!CORD_IS_STRING(top) && IS_CONCATENATION(top)) { - register struct Concatenation * conc = - &(((CordRep *)top) -> concatenation); - register size_t left_len; - - left_len = LEFT_LEN(conc); - current_pe++; - if (pos >= top_pos + left_len) { - current_pe -> pe_cord = top = conc -> right; - current_pe -> pe_start_pos = top_pos = top_pos + left_len; - top_len -= left_len; - } else { - current_pe -> pe_cord = top = conc -> left; - current_pe -> pe_start_pos = top_pos; - top_len = left_len; - } - p[0].path_len++; - } - /* Fill in leaf description for fast access. */ - if (CORD_IS_STRING(top)) { - p[0].cur_leaf = top; - p[0].cur_start = top_pos; - p[0].cur_end = top_pos + top_len; - } else { - p[0].cur_end = 0; - } - if (pos >= top_pos + top_len) p[0].path_len = CORD_POS_INVALID; -} - -char CORD__pos_fetch(register CORD_pos p) -{ - /* Leaf is a function node */ - struct CORD_pe * pe = &((p)[0].path[(p)[0].path_len]); - CORD leaf = pe -> pe_cord; - register struct Function * f = &(((CordRep *)leaf) -> function); - - if (!IS_FUNCTION(leaf)) ABORT("CORD_pos_fetch: bad leaf"); - return ((*(f -> fn))(p[0].cur_pos - pe -> pe_start_pos, f -> client_data)); -} - -void CORD__next(register CORD_pos p) -{ - register size_t cur_pos = p[0].cur_pos + 1; - register struct CORD_pe * current_pe = &((p)[0].path[(p)[0].path_len]); - register CORD leaf = current_pe -> pe_cord; - - /* Leaf is not a string or we're at end of leaf */ - p[0].cur_pos = cur_pos; - if (!CORD_IS_STRING(leaf)) { - /* Function leaf */ - register struct Function * f = &(((CordRep *)leaf) -> function); - register size_t start_pos = current_pe -> pe_start_pos; - register size_t end_pos = start_pos + f -> len; - - if (cur_pos < end_pos) { - /* Fill cache and return. */ - register size_t i; - register size_t limit = cur_pos + FUNCTION_BUF_SZ; - register CORD_fn fn = f -> fn; - register void * client_data = f -> client_data; - - if (limit > end_pos) { - limit = end_pos; - } - for (i = cur_pos; i < limit; i++) { - p[0].function_buf[i - cur_pos] = - (*fn)(i - start_pos, client_data); - } - p[0].cur_start = cur_pos; - p[0].cur_leaf = p[0].function_buf; - p[0].cur_end = limit; - return; - } - } - /* End of leaf */ - /* Pop the stack until we find two concatenation nodes with the */ - /* same start position: this implies we were in left part. */ - { - while (p[0].path_len > 0 - && current_pe[0].pe_start_pos != current_pe[-1].pe_start_pos) { - p[0].path_len--; - current_pe--; - } - if (p[0].path_len == 0) { - p[0].path_len = CORD_POS_INVALID; - return; - } - } - p[0].path_len--; - CORD__extend_path(p); -} - -void CORD__prev(register CORD_pos p) -{ - register struct CORD_pe * pe = &(p[0].path[p[0].path_len]); - - if (p[0].cur_pos == 0) { - p[0].path_len = CORD_POS_INVALID; - return; - } - p[0].cur_pos--; - if (p[0].cur_pos >= pe -> pe_start_pos) return; - - /* Beginning of leaf */ - - /* Pop the stack until we find two concatenation nodes with the */ - /* different start position: this implies we were in right part. */ - { - register struct CORD_pe * current_pe = &((p)[0].path[(p)[0].path_len]); - - while (p[0].path_len > 0 - && current_pe[0].pe_start_pos == current_pe[-1].pe_start_pos) { - p[0].path_len--; - current_pe--; - } - } - p[0].path_len--; - CORD__extend_path(p); -} - -#undef CORD_pos_fetch -#undef CORD_next -#undef CORD_prev -#undef CORD_pos_to_index -#undef CORD_pos_to_cord -#undef CORD_pos_valid - -char CORD_pos_fetch(register CORD_pos p) -{ - if (p[0].cur_start <= p[0].cur_pos && p[0].cur_pos < p[0].cur_end) { - return(p[0].cur_leaf[p[0].cur_pos - p[0].cur_start]); - } else { - return(CORD__pos_fetch(p)); - } -} - -void CORD_next(CORD_pos p) -{ - if (p[0].cur_pos < p[0].cur_end - 1) { - p[0].cur_pos++; - } else { - CORD__next(p); - } -} - -void CORD_prev(CORD_pos p) -{ - if (p[0].cur_end != 0 && p[0].cur_pos > p[0].cur_start) { - p[0].cur_pos--; - } else { - CORD__prev(p); - } -} - -size_t CORD_pos_to_index(CORD_pos p) -{ - return(p[0].cur_pos); -} - -CORD CORD_pos_to_cord(CORD_pos p) -{ - return(p[0].path[0].pe_cord); -} - -int CORD_pos_valid(CORD_pos p) -{ - return(p[0].path_len != CORD_POS_INVALID); -} - -void CORD_set_pos(CORD_pos p, CORD x, size_t i) -{ - if (x == CORD_EMPTY) { - p[0].path_len = CORD_POS_INVALID; - return; - } - p[0].path[0].pe_cord = x; - p[0].path[0].pe_start_pos = 0; - p[0].path_len = 0; - p[0].cur_pos = i; - CORD__extend_path(p); -} diff --git a/gc/cord/cordprnt.c b/gc/cord/cordprnt.c deleted file mode 100644 index 6ecc00e..0000000 --- a/gc/cord/cordprnt.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - */ -/* An sprintf implementation that understands cords. This is probably */ -/* not terribly portable. It assumes an ANSI stdarg.h. It further */ -/* assumes that I can make copies of va_list variables, and read */ -/* arguments repeatedly by applyting va_arg to the copies. This */ -/* could be avoided at some performance cost. */ -/* We also assume that unsigned and signed integers of various kinds */ -/* have the same sizes, and can be cast back and forth. */ -/* We assume that void * and char * have the same size. */ -/* All this cruft is needed because we want to rely on the underlying */ -/* sprintf implementation whenever possible. */ -/* Boehm, September 21, 1995 6:00 pm PDT */ - -#include "cord.h" -#include "ec.h" -#include <stdio.h> -#include <stdarg.h> -#include <string.h> -#include "gc.h" - -#define CONV_SPEC_LEN 50 /* Maximum length of a single */ - /* conversion specification. */ -#define CONV_RESULT_LEN 50 /* Maximum length of any */ - /* conversion with default */ - /* width and prec. */ - - -static int ec_len(CORD_ec x) -{ - return(CORD_len(x[0].ec_cord) + (x[0].ec_bufptr - x[0].ec_buf)); -} - -/* Possible nonumeric precision values. */ -# define NONE -1 -# define VARIABLE -2 -/* Copy the conversion specification from CORD_pos into the buffer buf */ -/* Return negative on error. */ -/* Source initially points one past the leading %. */ -/* It is left pointing at the conversion type. */ -/* Assign field width and precision to *width and *prec. */ -/* If width or prec is *, VARIABLE is assigned. */ -/* Set *left to 1 if left adjustment flag is present. */ -/* Set *long_arg to 1 if long flag ('l' or 'L') is present, or to */ -/* -1 if 'h' is present. */ -static int extract_conv_spec(CORD_pos source, char *buf, - int * width, int *prec, int *left, int * long_arg) -{ - register int result = 0; - register int current_number = 0; - register int saw_period = 0; - register int saw_number; - register int chars_so_far = 0; - register char current; - - *width = NONE; - buf[chars_so_far++] = '%'; - while(CORD_pos_valid(source)) { - if (chars_so_far >= CONV_SPEC_LEN) return(-1); - current = CORD_pos_fetch(source); - buf[chars_so_far++] = current; - switch(current) { - case '*': - saw_number = 1; - current_number = VARIABLE; - break; - case '0': - if (!saw_number) { - /* Zero fill flag; ignore */ - break; - } /* otherwise fall through: */ - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - saw_number = 1; - current_number *= 10; - current_number += current - '0'; - break; - case '.': - saw_period = 1; - if(saw_number) { - *width = current_number; - saw_number = 0; - } - current_number = 0; - break; - case 'l': - case 'L': - *long_arg = 1; - current_number = 0; - break; - case 'h': - *long_arg = -1; - current_number = 0; - break; - case ' ': - case '+': - case '#': - current_number = 0; - break; - case '-': - *left = 1; - current_number = 0; - break; - case 'd': - case 'i': - case 'o': - case 'u': - case 'x': - case 'X': - case 'f': - case 'e': - case 'E': - case 'g': - case 'G': - case 'c': - case 'C': - case 's': - case 'S': - case 'p': - case 'n': - case 'r': - goto done; - default: - return(-1); - } - CORD_next(source); - } - return(-1); - done: - if (saw_number) { - if (saw_period) { - *prec = current_number; - } else { - *prec = NONE; - *width = current_number; - } - } else { - *prec = NONE; - } - buf[chars_so_far] = '\0'; - return(result); -} - -int CORD_vsprintf(CORD * out, CORD format, va_list args) -{ - CORD_ec result; - register int count; - register char current; - CORD_pos pos; - char conv_spec[CONV_SPEC_LEN + 1]; - - CORD_ec_init(result); - for (CORD_set_pos(pos, format, 0); CORD_pos_valid(pos); CORD_next(pos)) { - current = CORD_pos_fetch(pos); - if (current == '%') { - CORD_next(pos); - if (!CORD_pos_valid(pos)) return(-1); - current = CORD_pos_fetch(pos); - if (current == '%') { - CORD_ec_append(result, current); - } else { - int width, prec; - int left_adj = 0; - int long_arg = 0; - CORD arg; - size_t len; - - if (extract_conv_spec(pos, conv_spec, - &width, &prec, - &left_adj, &long_arg) < 0) { - return(-1); - } - current = CORD_pos_fetch(pos); - switch(current) { - case 'n': - /* Assign length to next arg */ - if (long_arg == 0) { - int * pos_ptr; - pos_ptr = va_arg(args, int *); - *pos_ptr = ec_len(result); - } else if (long_arg > 0) { - long * pos_ptr; - pos_ptr = va_arg(args, long *); - *pos_ptr = ec_len(result); - } else { - short * pos_ptr; - pos_ptr = va_arg(args, short *); - *pos_ptr = ec_len(result); - } - goto done; - case 'r': - /* Append cord and any padding */ - if (width == VARIABLE) width = va_arg(args, int); - if (prec == VARIABLE) prec = va_arg(args, int); - arg = va_arg(args, CORD); - len = CORD_len(arg); - if (prec != NONE && len > prec) { - if (prec < 0) return(-1); - arg = CORD_substr(arg, 0, prec); - len = prec; - } - if (width != NONE && len < width) { - char * blanks = GC_MALLOC_ATOMIC(width-len+1); - - memset(blanks, ' ', width-len); - blanks[width-len] = '\0'; - if (left_adj) { - arg = CORD_cat(arg, blanks); - } else { - arg = CORD_cat(blanks, arg); - } - } - CORD_ec_append_cord(result, arg); - goto done; - case 'c': - if (width == NONE && prec == NONE) { - register char c; - - c = (char)va_arg(args, int); - CORD_ec_append(result, c); - goto done; - } - break; - case 's': - if (width == NONE && prec == NONE) { - char * str = va_arg(args, char *); - register char c; - - while (c = *str++) { - CORD_ec_append(result, c); - } - goto done; - } - break; - default: - break; - } - /* Use standard sprintf to perform conversion */ - { - register char * buf; - va_list vsprintf_args; - int max_size = 0; - int res; -# ifdef __va_copy - __va_copy(vsprintf_args, args); -# else -# if defined(__GNUC__) /* and probably in other cases */ - va_copy(vsprintf_args, args); -# else - vsprintf_args = args; -# endif -# endif - if (width == VARIABLE) width = va_arg(args, int); - if (prec == VARIABLE) prec = va_arg(args, int); - if (width != NONE) max_size = width; - if (prec != NONE && prec > max_size) max_size = prec; - max_size += CONV_RESULT_LEN; - if (max_size >= CORD_BUFSZ) { - buf = GC_MALLOC_ATOMIC(max_size + 1); - } else { - if (CORD_BUFSZ - (result[0].ec_bufptr-result[0].ec_buf) - < max_size) { - CORD_ec_flush_buf(result); - } - buf = result[0].ec_bufptr; - } - switch(current) { - case 'd': - case 'i': - case 'o': - case 'u': - case 'x': - case 'X': - case 'c': - if (long_arg <= 0) { - (void) va_arg(args, int); - } else if (long_arg > 0) { - (void) va_arg(args, long); - } - break; - case 's': - case 'p': - (void) va_arg(args, char *); - break; - case 'f': - case 'e': - case 'E': - case 'g': - case 'G': - (void) va_arg(args, double); - break; - default: - return(-1); - } - res = vsprintf(buf, conv_spec, vsprintf_args); - len = (size_t)res; - if ((char *)(GC_word)res == buf) { - /* old style vsprintf */ - len = strlen(buf); - } else if (res < 0) { - return(-1); - } - if (buf != result[0].ec_bufptr) { - register char c; - - while (c = *buf++) { - CORD_ec_append(result, c); - } - } else { - result[0].ec_bufptr = buf + len; - } - } - done:; - } - } else { - CORD_ec_append(result, current); - } - } - count = ec_len(result); - *out = CORD_balance(CORD_ec_to_cord(result)); - return(count); -} - -int CORD_sprintf(CORD * out, CORD format, ...) -{ - va_list args; - int result; - - va_start(args, format); - result = CORD_vsprintf(out, format, args); - va_end(args); - return(result); -} - -int CORD_fprintf(FILE * f, CORD format, ...) -{ - va_list args; - int result; - CORD out; - - va_start(args, format); - result = CORD_vsprintf(&out, format, args); - va_end(args); - if (result > 0) CORD_put(out, f); - return(result); -} - -int CORD_vfprintf(FILE * f, CORD format, va_list args) -{ - int result; - CORD out; - - result = CORD_vsprintf(&out, format, args); - if (result > 0) CORD_put(out, f); - return(result); -} - -int CORD_printf(CORD format, ...) -{ - va_list args; - int result; - CORD out; - - va_start(args, format); - result = CORD_vsprintf(&out, format, args); - va_end(args); - if (result > 0) CORD_put(out, stdout); - return(result); -} - -int CORD_vprintf(CORD format, va_list args) -{ - int result; - CORD out; - - result = CORD_vsprintf(&out, format, args); - if (result > 0) CORD_put(out, stdout); - return(result); -} diff --git a/gc/cord/cordtest.c b/gc/cord/cordtest.c deleted file mode 100644 index d54c65f..0000000 --- a/gc/cord/cordtest.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - */ -/* Boehm, August 24, 1994 11:58 am PDT */ -# include "cord.h" -# include <string.h> -# include <stdio.h> -# include <stdlib.h> -/* This is a very incomplete test of the cord package. It knows about */ -/* a few internals of the package (e.g. when C strings are returned) */ -/* that real clients shouldn't rely on. */ - -# define ABORT(string) \ -{ int x = 0; fprintf(stderr, "FAILED: %s\n", string); x = 1 / x; abort(); } - -int count; - -int test_fn(char c, void * client_data) -{ - if (client_data != (void *)13) ABORT("bad client data"); - if (count < 64*1024+1) { - if ((count & 1) == 0) { - if (c != 'b') ABORT("bad char"); - } else { - if (c != 'a') ABORT("bad char"); - } - count++; - return(0); - } else { - if (c != 'c') ABORT("bad char"); - count++; - return(1); - } -} - -char id_cord_fn(size_t i, void * client_data) -{ - return((char)i); -} - -void test_basics() -{ - CORD x = CORD_from_char_star("ab"); - register int i; - char c; - CORD y; - CORD_pos p; - - x = CORD_cat(x,x); - if (!CORD_IS_STRING(x)) ABORT("short cord should usually be a string"); - if (strcmp(x, "abab") != 0) ABORT("bad CORD_cat result"); - - for (i = 1; i < 16; i++) { - x = CORD_cat(x,x); - } - x = CORD_cat(x,"c"); - if (CORD_len(x) != 128*1024+1) ABORT("bad length"); - - count = 0; - if (CORD_iter5(x, 64*1024-1, test_fn, CORD_NO_FN, (void *)13) == 0) { - ABORT("CORD_iter5 failed"); - } - if (count != 64*1024 + 2) ABORT("CORD_iter5 failed"); - - count = 0; - CORD_set_pos(p, x, 64*1024-1); - while(CORD_pos_valid(p)) { - (void) test_fn(CORD_pos_fetch(p), (void *)13); - CORD_next(p); - } - if (count != 64*1024 + 2) ABORT("Position based iteration failed"); - - y = CORD_substr(x, 1023, 5); - if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string"); - if (strcmp(y, "babab") != 0) ABORT("bad CORD_substr result"); - - y = CORD_substr(x, 1024, 8); - if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string"); - if (strcmp(y, "abababab") != 0) ABORT("bad CORD_substr result"); - - y = CORD_substr(x, 128*1024-1, 8); - if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string"); - if (strcmp(y, "bc") != 0) ABORT("bad CORD_substr result"); - - x = CORD_balance(x); - if (CORD_len(x) != 128*1024+1) ABORT("bad length"); - - count = 0; - if (CORD_iter5(x, 64*1024-1, test_fn, CORD_NO_FN, (void *)13) == 0) { - ABORT("CORD_iter5 failed"); - } - if (count != 64*1024 + 2) ABORT("CORD_iter5 failed"); - - y = CORD_substr(x, 1023, 5); - if (!CORD_IS_STRING(y)) ABORT("short cord should usually be a string"); - if (strcmp(y, "babab") != 0) ABORT("bad CORD_substr result"); - y = CORD_from_fn(id_cord_fn, 0, 13); - i = 0; - CORD_set_pos(p, y, i); - while(CORD_pos_valid(p)) { - c = CORD_pos_fetch(p); - if(c != i) ABORT("Traversal of function node failed"); - CORD_next(p); i++; - } - if (i != 13) ABORT("Bad apparent length for function node"); -} - -void test_extras() -{ -# if defined(__OS2__) -# define FNAME1 "tmp1" -# define FNAME2 "tmp2" -# elif defined(AMIGA) -# define FNAME1 "T:tmp1" -# define FNAME2 "T:tmp2" -# else -# define FNAME1 "/tmp/cord_test" -# define FNAME2 "/tmp/cord_test2" -# endif - register int i; - CORD y = "abcdefghijklmnopqrstuvwxyz0123456789"; - CORD x = "{}"; - CORD w, z; - FILE *f; - FILE *f1a, *f1b, *f2; - - w = CORD_cat(CORD_cat(y,y),y); - z = CORD_catn(3,y,y,y); - if (CORD_cmp(w,z) != 0) ABORT("CORD_catn comparison wrong"); - for (i = 1; i < 100; i++) { - x = CORD_cat(x, y); - } - z = CORD_balance(x); - if (CORD_cmp(x,z) != 0) ABORT("balanced string comparison wrong"); - if (CORD_cmp(x,CORD_cat(z, CORD_nul(13))) >= 0) ABORT("comparison 2"); - if (CORD_cmp(CORD_cat(x, CORD_nul(13)), z) <= 0) ABORT("comparison 3"); - if (CORD_cmp(x,CORD_cat(z, "13")) >= 0) ABORT("comparison 4"); - if ((f = fopen(FNAME1, "w")) == 0) ABORT("open failed"); - if (CORD_put(z,f) == EOF) ABORT("CORD_put failed"); - if (fclose(f) == EOF) ABORT("fclose failed"); - w = CORD_from_file(f1a = fopen(FNAME1, "rb")); - if (CORD_len(w) != CORD_len(z)) ABORT("file length wrong"); - if (CORD_cmp(w,z) != 0) ABORT("file comparison wrong"); - if (CORD_cmp(CORD_substr(w, 50*36+2, 36), y) != 0) - ABORT("file substr wrong"); - z = CORD_from_file_lazy(f1b = fopen(FNAME1, "rb")); - if (CORD_cmp(w,z) != 0) ABORT("File conversions differ"); - if (CORD_chr(w, 0, '9') != 37) ABORT("CORD_chr failed 1"); - if (CORD_chr(w, 3, 'a') != 38) ABORT("CORD_chr failed 2"); - if (CORD_rchr(w, CORD_len(w) - 1, '}') != 1) ABORT("CORD_rchr failed"); - x = y; - for (i = 1; i < 14; i++) { - x = CORD_cat(x,x); - } - if ((f = fopen(FNAME2, "w")) == 0) ABORT("2nd open failed"); - if (CORD_put(x,f) == EOF) ABORT("CORD_put failed"); - if (fclose(f) == EOF) ABORT("fclose failed"); - w = CORD_from_file(f2 = fopen(FNAME2, "rb")); - if (CORD_len(w) != CORD_len(x)) ABORT("file length wrong"); - if (CORD_cmp(w,x) != 0) ABORT("file comparison wrong"); - if (CORD_cmp(CORD_substr(w, 1000*36, 36), y) != 0) - ABORT("file substr wrong"); - if (strcmp(CORD_to_char_star(CORD_substr(w, 1000*36, 36)), y) != 0) - ABORT("char * file substr wrong"); - if (strcmp(CORD_substr(w, 1000*36, 2), "ab") != 0) - ABORT("short file substr wrong"); - if (CORD_str(x,1,"9a") != 35) ABORT("CORD_str failed 1"); - if (CORD_str(x,0,"9abcdefghijk") != 35) ABORT("CORD_str failed 2"); - if (CORD_str(x,0,"9abcdefghijx") != CORD_NOT_FOUND) - ABORT("CORD_str failed 3"); - if (CORD_str(x,0,"9>") != CORD_NOT_FOUND) ABORT("CORD_str failed 4"); - if (remove(FNAME1) != 0) { - /* On some systems, e.g. OS2, this may fail if f1 is still open. */ - if ((fclose(f1a) == EOF) & (fclose(f1b) == EOF)) - ABORT("fclose(f1) failed"); - if (remove(FNAME1) != 0) ABORT("remove 1 failed"); - } - if (remove(FNAME2) != 0) { - if (fclose(f2) == EOF) ABORT("fclose(f2) failed"); - if (remove(FNAME2) != 0) ABORT("remove 2 failed"); - } -} - -void test_printf() -{ - CORD result; - char result2[200]; - long l; - short s; - CORD x; - - if (CORD_sprintf(&result, "%7.2f%ln", 3.14159F, &l) != 7) - ABORT("CORD_sprintf failed 1"); - if (CORD_cmp(result, " 3.14") != 0)ABORT("CORD_sprintf goofed 1"); - if (l != 7) ABORT("CORD_sprintf goofed 2"); - if (CORD_sprintf(&result, "%-7.2s%hn%c%s", "abcd", &s, 'x', "yz") != 10) - ABORT("CORD_sprintf failed 2"); - if (CORD_cmp(result, "ab xyz") != 0)ABORT("CORD_sprintf goofed 3"); - if (s != 7) ABORT("CORD_sprintf goofed 4"); - x = "abcdefghij"; - x = CORD_cat(x,x); - x = CORD_cat(x,x); - x = CORD_cat(x,x); - if (CORD_sprintf(&result, "->%-120.78r!\n", x) != 124) - ABORT("CORD_sprintf failed 3"); - (void) sprintf(result2, "->%-120.78s!\n", CORD_to_char_star(x)); - if (CORD_cmp(result, result2) != 0)ABORT("CORD_sprintf goofed 5"); -} - -main() -{ -# ifdef THINK_C - printf("cordtest:\n"); -# endif - test_basics(); - test_extras(); - test_printf(); - CORD_fprintf(stderr, "SUCCEEDED\n"); - return(0); -} diff --git a/gc/cord/cordxtra.c b/gc/cord/cordxtra.c deleted file mode 100644 index a5be10d..0000000 --- a/gc/cord/cordxtra.c +++ /dev/null @@ -1,621 +0,0 @@ -/* - * Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - * - * Author: Hans-J. Boehm (boehm@parc.xerox.com) - */ -/* - * These are functions on cords that do not need to understand their - * implementation. They serve also serve as example client code for - * cord_basics. - */ -/* Boehm, December 8, 1995 1:53 pm PST */ -# include <stdio.h> -# include <string.h> -# include <stdlib.h> -# include <stdarg.h> -# include "cord.h" -# include "ec.h" -# define I_HIDE_POINTERS /* So we get access to allocation lock. */ - /* We use this for lazy file reading, */ - /* so that we remain independent */ - /* of the threads primitives. */ -# include "gc.h" - -/* For now we assume that pointer reads and writes are atomic, */ -/* i.e. another thread always sees the state before or after */ -/* a write. This might be false on a Motorola M68K with */ -/* pointers that are not 32-bit aligned. But there probably */ -/* aren't too many threads packages running on those. */ -# define ATOMIC_WRITE(x,y) (x) = (y) -# define ATOMIC_READ(x) (*(x)) - -/* The standard says these are in stdio.h, but they aren't always: */ -# ifndef SEEK_SET -# define SEEK_SET 0 -# endif -# ifndef SEEK_END -# define SEEK_END 2 -# endif - -# define BUFSZ 2048 /* Size of stack allocated buffers when */ - /* we want large buffers. */ - -typedef void (* oom_fn)(void); - -# define OUT_OF_MEMORY { if (CORD_oom_fn != (oom_fn) 0) (*CORD_oom_fn)(); \ - ABORT("Out of memory\n"); } -# define ABORT(msg) { fprintf(stderr, "%s\n", msg); abort(); } - -CORD CORD_cat_char(CORD x, char c) -{ - register char * string; - - if (c == '\0') return(CORD_cat(x, CORD_nul(1))); - string = GC_MALLOC_ATOMIC(2); - if (string == 0) OUT_OF_MEMORY; - string[0] = c; - string[1] = '\0'; - return(CORD_cat_char_star(x, string, 1)); -} - -CORD CORD_catn(int nargs, ...) -{ - register CORD result = CORD_EMPTY; - va_list args; - register int i; - - va_start(args, nargs); - for (i = 0; i < nargs; i++) { - register CORD next = va_arg(args, CORD); - result = CORD_cat(result, next); - } - va_end(args); - return(result); -} - -typedef struct { - size_t len; - size_t count; - char * buf; -} CORD_fill_data; - -int CORD_fill_proc(char c, void * client_data) -{ - register CORD_fill_data * d = (CORD_fill_data *)client_data; - register size_t count = d -> count; - - (d -> buf)[count] = c; - d -> count = ++count; - if (count >= d -> len) { - return(1); - } else { - return(0); - } -} - -int CORD_batched_fill_proc(const char * s, void * client_data) -{ - register CORD_fill_data * d = (CORD_fill_data *)client_data; - register size_t count = d -> count; - register size_t max = d -> len; - register char * buf = d -> buf; - register const char * t = s; - - while((buf[count] = *t++) != '\0') { - count++; - if (count >= max) { - d -> count = count; - return(1); - } - } - d -> count = count; - return(0); -} - -/* Fill buf with len characters starting at i. */ -/* Assumes len characters are available. */ -void CORD_fill_buf(CORD x, size_t i, size_t len, char * buf) -{ - CORD_fill_data fd; - - fd.len = len; - fd.buf = buf; - fd.count = 0; - (void)CORD_iter5(x, i, CORD_fill_proc, CORD_batched_fill_proc, &fd); -} - -int CORD_cmp(CORD x, CORD y) -{ - CORD_pos xpos; - CORD_pos ypos; - register size_t avail, yavail; - - if (y == CORD_EMPTY) return(x != CORD_EMPTY); - if (x == CORD_EMPTY) return(-1); - if (CORD_IS_STRING(y) && CORD_IS_STRING(x)) return(strcmp(x,y)); - CORD_set_pos(xpos, x, 0); - CORD_set_pos(ypos, y, 0); - for(;;) { - if (!CORD_pos_valid(xpos)) { - if (CORD_pos_valid(ypos)) { - return(-1); - } else { - return(0); - } - } - if (!CORD_pos_valid(ypos)) { - return(1); - } - if ((avail = CORD_pos_chars_left(xpos)) <= 0 - || (yavail = CORD_pos_chars_left(ypos)) <= 0) { - register char xcurrent = CORD_pos_fetch(xpos); - register char ycurrent = CORD_pos_fetch(ypos); - if (xcurrent != ycurrent) return(xcurrent - ycurrent); - CORD_next(xpos); - CORD_next(ypos); - } else { - /* process as many characters as we can */ - register int result; - - if (avail > yavail) avail = yavail; - result = strncmp(CORD_pos_cur_char_addr(xpos), - CORD_pos_cur_char_addr(ypos), avail); - if (result != 0) return(result); - CORD_pos_advance(xpos, avail); - CORD_pos_advance(ypos, avail); - } - } -} - -int CORD_ncmp(CORD x, size_t x_start, CORD y, size_t y_start, size_t len) -{ - CORD_pos xpos; - CORD_pos ypos; - register size_t count; - register long avail, yavail; - - CORD_set_pos(xpos, x, x_start); - CORD_set_pos(ypos, y, y_start); - for(count = 0; count < len;) { - if (!CORD_pos_valid(xpos)) { - if (CORD_pos_valid(ypos)) { - return(-1); - } else { - return(0); - } - } - if (!CORD_pos_valid(ypos)) { - return(1); - } - if ((avail = CORD_pos_chars_left(xpos)) <= 0 - || (yavail = CORD_pos_chars_left(ypos)) <= 0) { - register char xcurrent = CORD_pos_fetch(xpos); - register char ycurrent = CORD_pos_fetch(ypos); - if (xcurrent != ycurrent) return(xcurrent - ycurrent); - CORD_next(xpos); - CORD_next(ypos); - count++; - } else { - /* process as many characters as we can */ - register int result; - - if (avail > yavail) avail = yavail; - count += avail; - if (count > len) avail -= (count - len); - result = strncmp(CORD_pos_cur_char_addr(xpos), - CORD_pos_cur_char_addr(ypos), (size_t)avail); - if (result != 0) return(result); - CORD_pos_advance(xpos, (size_t)avail); - CORD_pos_advance(ypos, (size_t)avail); - } - } - return(0); -} - -char * CORD_to_char_star(CORD x) -{ - register size_t len = CORD_len(x); - char * result = GC_MALLOC_ATOMIC(len + 1); - - if (result == 0) OUT_OF_MEMORY; - CORD_fill_buf(x, 0, len, result); - result[len] = '\0'; - return(result); -} - -CORD CORD_from_char_star(const char *s) -{ - char * result; - size_t len = strlen(s); - - if (0 == len) return(CORD_EMPTY); - result = GC_MALLOC_ATOMIC(len + 1); - if (result == 0) OUT_OF_MEMORY; - memcpy(result, s, len+1); - return(result); -} - -const char * CORD_to_const_char_star(CORD x) -{ - if (x == 0) return(""); - if (CORD_IS_STRING(x)) return((const char *)x); - return(CORD_to_char_star(x)); -} - -char CORD_fetch(CORD x, size_t i) -{ - CORD_pos xpos; - - CORD_set_pos(xpos, x, i); - if (!CORD_pos_valid(xpos)) ABORT("bad index?"); - return(CORD_pos_fetch(xpos)); -} - - -int CORD_put_proc(char c, void * client_data) -{ - register FILE * f = (FILE *)client_data; - - return(putc(c, f) == EOF); -} - -int CORD_batched_put_proc(const char * s, void * client_data) -{ - register FILE * f = (FILE *)client_data; - - return(fputs(s, f) == EOF); -} - - -int CORD_put(CORD x, FILE * f) -{ - if (CORD_iter5(x, 0, CORD_put_proc, CORD_batched_put_proc, f)) { - return(EOF); - } else { - return(1); - } -} - -typedef struct { - size_t pos; /* Current position in the cord */ - char target; /* Character we're looking for */ -} chr_data; - -int CORD_chr_proc(char c, void * client_data) -{ - register chr_data * d = (chr_data *)client_data; - - if (c == d -> target) return(1); - (d -> pos) ++; - return(0); -} - -int CORD_rchr_proc(char c, void * client_data) -{ - register chr_data * d = (chr_data *)client_data; - - if (c == d -> target) return(1); - (d -> pos) --; - return(0); -} - -int CORD_batched_chr_proc(const char *s, void * client_data) -{ - register chr_data * d = (chr_data *)client_data; - register char * occ = strchr(s, d -> target); - - if (occ == 0) { - d -> pos += strlen(s); - return(0); - } else { - d -> pos += occ - s; - return(1); - } -} - -size_t CORD_chr(CORD x, size_t i, int c) -{ - chr_data d; - - d.pos = i; - d.target = c; - if (CORD_iter5(x, i, CORD_chr_proc, CORD_batched_chr_proc, &d)) { - return(d.pos); - } else { - return(CORD_NOT_FOUND); - } -} - -size_t CORD_rchr(CORD x, size_t i, int c) -{ - chr_data d; - - d.pos = i; - d.target = c; - if (CORD_riter4(x, i, CORD_rchr_proc, &d)) { - return(d.pos); - } else { - return(CORD_NOT_FOUND); - } -} - -/* Find the first occurrence of s in x at position start or later. */ -/* This uses an asymptotically poor algorithm, which should typically */ -/* perform acceptably. We compare the first few characters directly, */ -/* and call CORD_ncmp whenever there is a partial match. */ -/* This has the advantage that we allocate very little, or not at all. */ -/* It's very fast if there are few close misses. */ -size_t CORD_str(CORD x, size_t start, CORD s) -{ - CORD_pos xpos; - size_t xlen = CORD_len(x); - size_t slen; - register size_t start_len; - const char * s_start; - unsigned long s_buf = 0; /* The first few characters of s */ - unsigned long x_buf = 0; /* Start of candidate substring. */ - /* Initialized only to make compilers */ - /* happy. */ - unsigned long mask = 0; - register size_t i; - register size_t match_pos; - - if (s == CORD_EMPTY) return(start); - if (CORD_IS_STRING(s)) { - s_start = s; - slen = strlen(s); - } else { - s_start = CORD_to_char_star(CORD_substr(s, 0, sizeof(unsigned long))); - slen = CORD_len(s); - } - if (xlen < start || xlen - start < slen) return(CORD_NOT_FOUND); - start_len = slen; - if (start_len > sizeof(unsigned long)) start_len = sizeof(unsigned long); - CORD_set_pos(xpos, x, start); - for (i = 0; i < start_len; i++) { - mask <<= 8; - mask |= 0xff; - s_buf <<= 8; - s_buf |= s_start[i]; - x_buf <<= 8; - x_buf |= CORD_pos_fetch(xpos); - CORD_next(xpos); - } - for (match_pos = start; ; match_pos++) { - if ((x_buf & mask) == s_buf) { - if (slen == start_len || - CORD_ncmp(x, match_pos + start_len, - s, start_len, slen - start_len) == 0) { - return(match_pos); - } - } - if ( match_pos == xlen - slen ) { - return(CORD_NOT_FOUND); - } - x_buf <<= 8; - x_buf |= CORD_pos_fetch(xpos); - CORD_next(xpos); - } -} - -void CORD_ec_flush_buf(CORD_ec x) -{ - register size_t len = x[0].ec_bufptr - x[0].ec_buf; - char * s; - - if (len == 0) return; - s = GC_MALLOC_ATOMIC(len+1); - memcpy(s, x[0].ec_buf, len); - s[len] = '\0'; - x[0].ec_cord = CORD_cat_char_star(x[0].ec_cord, s, len); - x[0].ec_bufptr = x[0].ec_buf; -} - -void CORD_ec_append_cord(CORD_ec x, CORD s) -{ - CORD_ec_flush_buf(x); - x[0].ec_cord = CORD_cat(x[0].ec_cord, s); -} - -/*ARGSUSED*/ -char CORD_nul_func(size_t i, void * client_data) -{ - return((char)(unsigned long)client_data); -} - - -CORD CORD_chars(char c, size_t i) -{ - return(CORD_from_fn(CORD_nul_func, (void *)(unsigned long)c, i)); -} - -CORD CORD_from_file_eager(FILE * f) -{ - register int c; - CORD_ec ecord; - - CORD_ec_init(ecord); - for(;;) { - c = getc(f); - if (c == 0) { - /* Append the right number of NULs */ - /* Note that any string of NULs is rpresented in 4 words, */ - /* independent of its length. */ - register size_t count = 1; - - CORD_ec_flush_buf(ecord); - while ((c = getc(f)) == 0) count++; - ecord[0].ec_cord = CORD_cat(ecord[0].ec_cord, CORD_nul(count)); - } - if (c == EOF) break; - CORD_ec_append(ecord, c); - } - (void) fclose(f); - return(CORD_balance(CORD_ec_to_cord(ecord))); -} - -/* The state maintained for a lazily read file consists primarily */ -/* of a large direct-mapped cache of previously read values. */ -/* We could rely more on stdio buffering. That would have 2 */ -/* disadvantages: */ -/* 1) Empirically, not all fseek implementations preserve the */ -/* buffer whenever they could. */ -/* 2) It would fail if 2 different sections of a long cord */ -/* were being read alternately. */ -/* We do use the stdio buffer for read ahead. */ -/* To guarantee thread safety in the presence of atomic pointer */ -/* writes, cache lines are always replaced, and never modified in */ -/* place. */ - -# define LOG_CACHE_SZ 14 -# define CACHE_SZ (1 << LOG_CACHE_SZ) -# define LOG_LINE_SZ 9 -# define LINE_SZ (1 << LOG_LINE_SZ) - -typedef struct { - size_t tag; - char data[LINE_SZ]; - /* data[i%LINE_SZ] = ith char in file if tag = i/LINE_SZ */ -} cache_line; - -typedef struct { - FILE * lf_file; - size_t lf_current; /* Current file pointer value */ - cache_line * volatile lf_cache[CACHE_SZ/LINE_SZ]; -} lf_state; - -# define MOD_CACHE_SZ(n) ((n) & (CACHE_SZ - 1)) -# define DIV_CACHE_SZ(n) ((n) >> LOG_CACHE_SZ) -# define MOD_LINE_SZ(n) ((n) & (LINE_SZ - 1)) -# define DIV_LINE_SZ(n) ((n) >> LOG_LINE_SZ) -# define LINE_START(n) ((n) & ~(LINE_SZ - 1)) - -typedef struct { - lf_state * state; - size_t file_pos; /* Position of needed character. */ - cache_line * new_cache; -} refill_data; - -/* Executed with allocation lock. */ -static char refill_cache(client_data) -refill_data * client_data; -{ - register lf_state * state = client_data -> state; - register size_t file_pos = client_data -> file_pos; - FILE *f = state -> lf_file; - size_t line_start = LINE_START(file_pos); - size_t line_no = DIV_LINE_SZ(MOD_CACHE_SZ(file_pos)); - cache_line * new_cache = client_data -> new_cache; - - if (line_start != state -> lf_current - && fseek(f, line_start, SEEK_SET) != 0) { - ABORT("fseek failed"); - } - if (fread(new_cache -> data, sizeof(char), LINE_SZ, f) - <= file_pos - line_start) { - ABORT("fread failed"); - } - new_cache -> tag = DIV_LINE_SZ(file_pos); - /* Store barrier goes here. */ - ATOMIC_WRITE(state -> lf_cache[line_no], new_cache); - state -> lf_current = line_start + LINE_SZ; - return(new_cache->data[MOD_LINE_SZ(file_pos)]); -} - -char CORD_lf_func(size_t i, void * client_data) -{ - register lf_state * state = (lf_state *)client_data; - register cache_line * volatile * cl_addr = - &(state -> lf_cache[DIV_LINE_SZ(MOD_CACHE_SZ(i))]); - register cache_line * cl = (cache_line *)ATOMIC_READ(cl_addr); - - if (cl == 0 || cl -> tag != DIV_LINE_SZ(i)) { - /* Cache miss */ - refill_data rd; - - rd.state = state; - rd.file_pos = i; - rd.new_cache = GC_NEW_ATOMIC(cache_line); - if (rd.new_cache == 0) OUT_OF_MEMORY; - return((char)(GC_word) - GC_call_with_alloc_lock((GC_fn_type) refill_cache, &rd)); - } - return(cl -> data[MOD_LINE_SZ(i)]); -} - -/*ARGSUSED*/ -void CORD_lf_close_proc(void * obj, void * client_data) -{ - if (fclose(((lf_state *)obj) -> lf_file) != 0) { - ABORT("CORD_lf_close_proc: fclose failed"); - } -} - -CORD CORD_from_file_lazy_inner(FILE * f, size_t len) -{ - register lf_state * state = GC_NEW(lf_state); - register int i; - - if (state == 0) OUT_OF_MEMORY; - if (len != 0) { - /* Dummy read to force buffer allocation. */ - /* This greatly increases the probability */ - /* of avoiding deadlock if buffer allocation */ - /* is redirected to GC_malloc and the */ - /* world is multithreaded. */ - char buf[1]; - - (void) fread(buf, 1, 1, f); - rewind(f); - } - state -> lf_file = f; - for (i = 0; i < CACHE_SZ/LINE_SZ; i++) { - state -> lf_cache[i] = 0; - } - state -> lf_current = 0; - GC_REGISTER_FINALIZER(state, CORD_lf_close_proc, 0, 0, 0); - return(CORD_from_fn(CORD_lf_func, state, len)); -} - -CORD CORD_from_file_lazy(FILE * f) -{ - register long len; - - if (fseek(f, 0l, SEEK_END) != 0) { - ABORT("Bad fd argument - fseek failed"); - } - if ((len = ftell(f)) < 0) { - ABORT("Bad fd argument - ftell failed"); - } - rewind(f); - return(CORD_from_file_lazy_inner(f, (size_t)len)); -} - -# define LAZY_THRESHOLD (128*1024 + 1) - -CORD CORD_from_file(FILE * f) -{ - register long len; - - if (fseek(f, 0l, SEEK_END) != 0) { - ABORT("Bad fd argument - fseek failed"); - } - if ((len = ftell(f)) < 0) { - ABORT("Bad fd argument - ftell failed"); - } - rewind(f); - if (len < LAZY_THRESHOLD) { - return(CORD_from_file_eager(f)); - } else { - return(CORD_from_file_lazy_inner(f, (size_t)len)); - } -} diff --git a/gc/cord/de.c b/gc/cord/de.c deleted file mode 100644 index fda7142..0000000 --- a/gc/cord/de.c +++ /dev/null @@ -1,603 +0,0 @@ -/* - * Copyright (c) 1993-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - * - * Author: Hans-J. Boehm (boehm@parc.xerox.com) - */ -/* - * A really simple-minded text editor based on cords. - * Things it does right: - * No size bounds. - * Inbounded undo. - * Shouldn't crash no matter what file you invoke it on (e.g. /vmunix) - * (Make sure /vmunix is not writable before you try this.) - * Scrolls horizontally. - * Things it does wrong: - * It doesn't handle tabs reasonably (use "expand" first). - * The command set is MUCH too small. - * The redisplay algorithm doesn't let curses do the scrolling. - * The rule for moving the window over the file is suboptimal. - */ -/* Boehm, February 6, 1995 12:27 pm PST */ - -/* Boehm, May 19, 1994 2:20 pm PDT */ -#include <stdio.h> -#include "gc.h" -#include "cord.h" - -#ifdef THINK_C -#define MACINTOSH -#include <ctype.h> -#endif - -#if defined(__BORLANDC__) && !defined(WIN32) - /* If this is DOS or win16, we'll fail anyway. */ - /* Might as well assume win32. */ -# define WIN32 -#endif - -#if defined(WIN32) -# include <windows.h> -# include "de_win.h" -#elif defined(MACINTOSH) -# include <console.h> -/* curses emulation. */ -# define initscr() -# define endwin() -# define nonl() -# define noecho() csetmode(C_NOECHO, stdout) -# define cbreak() csetmode(C_CBREAK, stdout) -# define refresh() -# define addch(c) putchar(c) -# define standout() cinverse(1, stdout) -# define standend() cinverse(0, stdout) -# define move(line,col) cgotoxy(col + 1, line + 1, stdout) -# define clrtoeol() ccleol(stdout) -# define de_error(s) { fprintf(stderr, s); getchar(); } -# define LINES 25 -# define COLS 80 -#else -# include <curses.h> -# define de_error(s) { fprintf(stderr, s); sleep(2); } -#endif -#include "de_cmds.h" - -/* List of line number to position mappings, in descending order. */ -/* There may be holes. */ -typedef struct LineMapRep { - int line; - size_t pos; - struct LineMapRep * previous; -} * line_map; - -/* List of file versions, one per edit operation */ -typedef struct HistoryRep { - CORD file_contents; - struct HistoryRep * previous; - line_map map; /* Invalid for first record "now" */ -} * history; - -history now = 0; -CORD current; /* == now -> file_contents. */ -size_t current_len; /* Current file length. */ -line_map current_map = 0; /* Current line no. to pos. map */ -size_t current_map_size = 0; /* Number of current_map entries. */ - /* Not always accurate, but reset */ - /* by prune_map. */ -# define MAX_MAP_SIZE 3000 - -/* Current display position */ -int dis_line = 0; -int dis_col = 0; - -# define ALL -1 -# define NONE - 2 -int need_redisplay = 0; /* Line that needs to be redisplayed. */ - - -/* Current cursor position. Always within file. */ -int line = 0; -int col = 0; -size_t file_pos = 0; /* Character position corresponding to cursor. */ - -/* Invalidate line map for lines > i */ -void invalidate_map(int i) -{ - while(current_map -> line > i) { - current_map = current_map -> previous; - current_map_size--; - } -} - -/* Reduce the number of map entries to save space for huge files. */ -/* This also affects maps in histories. */ -void prune_map() -{ - line_map map = current_map; - int start_line = map -> line; - - current_map_size = 0; - for(; map != 0; map = map -> previous) { - current_map_size++; - if (map -> line < start_line - LINES && map -> previous != 0) { - map -> previous = map -> previous -> previous; - } - } -} -/* Add mapping entry */ -void add_map(int line, size_t pos) -{ - line_map new_map = GC_NEW(struct LineMapRep); - - if (current_map_size >= MAX_MAP_SIZE) prune_map(); - new_map -> line = line; - new_map -> pos = pos; - new_map -> previous = current_map; - current_map = new_map; - current_map_size++; -} - - - -/* Return position of column *c of ith line in */ -/* current file. Adjust *c to be within the line.*/ -/* A 0 pointer is taken as 0 column. */ -/* Returns CORD_NOT_FOUND if i is too big. */ -/* Assumes i > dis_line. */ -size_t line_pos(int i, int *c) -{ - int j; - size_t cur; - size_t next; - line_map map = current_map; - - while (map -> line > i) map = map -> previous; - if (map -> line < i - 2) /* rebuild */ invalidate_map(i); - for (j = map -> line, cur = map -> pos; j < i;) { - cur = CORD_chr(current, cur, '\n'); - if (cur == current_len-1) return(CORD_NOT_FOUND); - cur++; - if (++j > current_map -> line) add_map(j, cur); - } - if (c != 0) { - next = CORD_chr(current, cur, '\n'); - if (next == CORD_NOT_FOUND) next = current_len - 1; - if (next < cur + *c) { - *c = next - cur; - } - cur += *c; - } - return(cur); -} - -void add_hist(CORD s) -{ - history new_file = GC_NEW(struct HistoryRep); - - new_file -> file_contents = current = s; - current_len = CORD_len(s); - new_file -> previous = now; - if (now != 0) now -> map = current_map; - now = new_file; -} - -void del_hist(void) -{ - now = now -> previous; - current = now -> file_contents; - current_map = now -> map; - current_len = CORD_len(current); -} - -/* Current screen_contents; a dynamically allocated array of CORDs */ -CORD * screen = 0; -int screen_size = 0; - -# ifndef WIN32 -/* Replace a line in the curses stdscr. All control characters are */ -/* displayed as upper case characters in standout mode. This isn't */ -/* terribly appropriate for tabs. */ -void replace_line(int i, CORD s) -{ - register int c; - CORD_pos p; - size_t len = CORD_len(s); - - if (screen == 0 || LINES > screen_size) { - screen_size = LINES; - screen = (CORD *)GC_MALLOC(screen_size * sizeof(CORD)); - } -# if !defined(MACINTOSH) - /* A gross workaround for an apparent curses bug: */ - if (i == LINES-1 && len == COLS) { - s = CORD_substr(s, 0, CORD_len(s) - 1); - } -# endif - if (CORD_cmp(screen[i], s) != 0) { - move(i, 0); clrtoeol(); move(i,0); - - CORD_FOR (p, s) { - c = CORD_pos_fetch(p) & 0x7f; - if (iscntrl(c)) { - standout(); addch(c + 0x40); standend(); - } else { - addch(c); - } - } - screen[i] = s; - } -} -#else -# define replace_line(i,s) invalidate_line(i) -#endif - -/* Return up to COLS characters of the line of s starting at pos, */ -/* returning only characters after the given column. */ -CORD retrieve_line(CORD s, size_t pos, unsigned column) -{ - CORD candidate = CORD_substr(s, pos, column + COLS); - /* avoids scanning very long lines */ - int eol = CORD_chr(candidate, 0, '\n'); - int len; - - if (eol == CORD_NOT_FOUND) eol = CORD_len(candidate); - len = (int)eol - (int)column; - if (len < 0) len = 0; - return(CORD_substr(s, pos + column, len)); -} - -# ifdef WIN32 -# define refresh(); - - CORD retrieve_screen_line(int i) - { - register size_t pos; - - invalidate_map(dis_line + LINES); /* Prune search */ - pos = line_pos(dis_line + i, 0); - if (pos == CORD_NOT_FOUND) return(CORD_EMPTY); - return(retrieve_line(current, pos, dis_col)); - } -# endif - -/* Display the visible section of the current file */ -void redisplay(void) -{ - register int i; - - invalidate_map(dis_line + LINES); /* Prune search */ - for (i = 0; i < LINES; i++) { - if (need_redisplay == ALL || need_redisplay == i) { - register size_t pos = line_pos(dis_line + i, 0); - - if (pos == CORD_NOT_FOUND) break; - replace_line(i, retrieve_line(current, pos, dis_col)); - if (need_redisplay == i) goto done; - } - } - for (; i < LINES; i++) replace_line(i, CORD_EMPTY); -done: - refresh(); - need_redisplay = NONE; -} - -int dis_granularity; - -/* Update dis_line, dis_col, and dis_pos to make cursor visible. */ -/* Assumes line, col, dis_line, dis_pos are in bounds. */ -void normalize_display() -{ - int old_line = dis_line; - int old_col = dis_col; - - dis_granularity = 1; - if (LINES > 15 && COLS > 15) dis_granularity = 2; - while (dis_line > line) dis_line -= dis_granularity; - while (dis_col > col) dis_col -= dis_granularity; - while (line >= dis_line + LINES) dis_line += dis_granularity; - while (col >= dis_col + COLS) dis_col += dis_granularity; - if (old_line != dis_line || old_col != dis_col) { - need_redisplay = ALL; - } -} - -# if defined(WIN32) -# elif defined(MACINTOSH) -# define move_cursor(x,y) cgotoxy(x + 1, y + 1, stdout) -# else -# define move_cursor(x,y) move(y,x) -# endif - -/* Adjust display so that cursor is visible; move cursor into position */ -/* Update screen if necessary. */ -void fix_cursor(void) -{ - normalize_display(); - if (need_redisplay != NONE) redisplay(); - move_cursor(col - dis_col, line - dis_line); - refresh(); -# ifndef WIN32 - fflush(stdout); -# endif -} - -/* Make sure line, col, and dis_pos are somewhere inside file. */ -/* Recompute file_pos. Assumes dis_pos is accurate or past eof */ -void fix_pos() -{ - int my_col = col; - - if ((size_t)line > current_len) line = current_len; - file_pos = line_pos(line, &my_col); - if (file_pos == CORD_NOT_FOUND) { - for (line = current_map -> line, file_pos = current_map -> pos; - file_pos < current_len; - line++, file_pos = CORD_chr(current, file_pos, '\n') + 1); - line--; - file_pos = line_pos(line, &col); - } else { - col = my_col; - } -} - -#if defined(WIN32) -# define beep() Beep(1000 /* Hz */, 300 /* msecs */) -#elif defined(MACINTOSH) -# define beep() SysBeep(1) -#else -/* - * beep() is part of some curses packages and not others. - * We try to match the type of the builtin one, if any. - */ -#ifdef __STDC__ - int beep(void) -#else - int beep() -#endif -{ - putc('\007', stderr); - return(0); -} -#endif - -# define NO_PREFIX -1 -# define BARE_PREFIX -2 -int repeat_count = NO_PREFIX; /* Current command prefix. */ - -int locate_mode = 0; /* Currently between 2 ^Ls */ -CORD locate_string = CORD_EMPTY; /* Current search string. */ - -char * arg_file_name; - -#ifdef WIN32 -/* Change the current position to whatever is currently displayed at */ -/* the given SCREEN coordinates. */ -void set_position(int c, int l) -{ - line = l + dis_line; - col = c + dis_col; - fix_pos(); - move_cursor(col - dis_col, line - dis_line); -} -#endif /* WIN32 */ - -/* Perform the command associated with character c. C may be an */ -/* integer > 256 denoting a windows command, one of the above control */ -/* characters, or another ASCII character to be used as either a */ -/* character to be inserted, a repeat count, or a search string, */ -/* depending on the current state. */ -void do_command(int c) -{ - int i; - int need_fix_pos; - FILE * out; - - if ( c == '\r') c = '\n'; - if (locate_mode) { - size_t new_pos; - - if (c == LOCATE) { - locate_mode = 0; - locate_string = CORD_EMPTY; - return; - } - locate_string = CORD_cat_char(locate_string, (char)c); - new_pos = CORD_str(current, file_pos - CORD_len(locate_string) + 1, - locate_string); - if (new_pos != CORD_NOT_FOUND) { - need_redisplay = ALL; - new_pos += CORD_len(locate_string); - for (;;) { - file_pos = line_pos(line + 1, 0); - if (file_pos > new_pos) break; - line++; - } - col = new_pos - line_pos(line, 0); - file_pos = new_pos; - fix_cursor(); - } else { - locate_string = CORD_substr(locate_string, 0, - CORD_len(locate_string) - 1); - beep(); - } - return; - } - if (c == REPEAT) { - repeat_count = BARE_PREFIX; return; - } else if (c < 0x100 && isdigit(c)){ - if (repeat_count == BARE_PREFIX) { - repeat_count = c - '0'; return; - } else if (repeat_count != NO_PREFIX) { - repeat_count = 10 * repeat_count + c - '0'; return; - } - } - if (repeat_count == NO_PREFIX) repeat_count = 1; - if (repeat_count == BARE_PREFIX && (c == UP || c == DOWN)) { - repeat_count = LINES - dis_granularity; - } - if (repeat_count == BARE_PREFIX) repeat_count = 8; - need_fix_pos = 0; - for (i = 0; i < repeat_count; i++) { - switch(c) { - case LOCATE: - locate_mode = 1; - break; - case TOP: - line = col = file_pos = 0; - break; - case UP: - if (line != 0) { - line--; - need_fix_pos = 1; - } - break; - case DOWN: - line++; - need_fix_pos = 1; - break; - case LEFT: - if (col != 0) { - col--; file_pos--; - } - break; - case RIGHT: - if (CORD_fetch(current, file_pos) == '\n') break; - col++; file_pos++; - break; - case UNDO: - del_hist(); - need_redisplay = ALL; need_fix_pos = 1; - break; - case BS: - if (col == 0) { - beep(); - break; - } - col--; file_pos--; - /* fall through: */ - case DEL: - if (file_pos == current_len-1) break; - /* Can't delete trailing newline */ - if (CORD_fetch(current, file_pos) == '\n') { - need_redisplay = ALL; need_fix_pos = 1; - } else { - need_redisplay = line - dis_line; - } - add_hist(CORD_cat( - CORD_substr(current, 0, file_pos), - CORD_substr(current, file_pos+1, current_len))); - invalidate_map(line); - break; - case WRITE: - { - CORD name = CORD_cat(CORD_from_char_star(arg_file_name), - ".new"); - - if ((out = fopen(CORD_to_const_char_star(name), "wb")) == NULL - || CORD_put(current, out) == EOF) { - de_error("Write failed\n"); - need_redisplay = ALL; - } else { - fclose(out); - } - } - break; - default: - { - CORD left_part = CORD_substr(current, 0, file_pos); - CORD right_part = CORD_substr(current, file_pos, current_len); - - add_hist(CORD_cat(CORD_cat_char(left_part, (char)c), - right_part)); - invalidate_map(line); - if (c == '\n') { - col = 0; line++; file_pos++; - need_redisplay = ALL; - } else { - col++; file_pos++; - need_redisplay = line - dis_line; - } - break; - } - } - } - if (need_fix_pos) fix_pos(); - fix_cursor(); - repeat_count = NO_PREFIX; -} - -/* OS independent initialization */ - -void generic_init(void) -{ - FILE * f; - CORD initial; - - if ((f = fopen(arg_file_name, "rb")) == NULL) { - initial = "\n"; - } else { - initial = CORD_from_file(f); - if (initial == CORD_EMPTY - || CORD_fetch(initial, CORD_len(initial)-1) != '\n') { - initial = CORD_cat(initial, "\n"); - } - } - add_map(0,0); - add_hist(initial); - now -> map = current_map; - now -> previous = now; /* Can't back up further: beginning of the world */ - need_redisplay = ALL; - fix_cursor(); -} - -#ifndef WIN32 - -main(argc, argv) -int argc; -char ** argv; -{ - int c; - -#if defined(MACINTOSH) - console_options.title = "\pDumb Editor"; - cshow(stdout); - GC_init(); - argc = ccommand(&argv); -#endif - - if (argc != 2) goto usage; - arg_file_name = argv[1]; - setvbuf(stdout, GC_MALLOC_ATOMIC(8192), _IOFBF, 8192); - initscr(); - noecho(); nonl(); cbreak(); - generic_init(); - while ((c = getchar()) != QUIT) { - if (c == EOF) break; - do_command(c); - } -done: - move(LINES-1, 0); - clrtoeol(); - refresh(); - nl(); - echo(); - endwin(); - exit(0); -usage: - fprintf(stderr, "Usage: %s file\n", argv[0]); - fprintf(stderr, "Cursor keys: ^B(left) ^F(right) ^P(up) ^N(down)\n"); - fprintf(stderr, "Undo: ^U Write to <file>.new: ^W"); - fprintf(stderr, "Quit:^D Repeat count: ^R[n]\n"); - fprintf(stderr, "Top: ^T Locate (search, find): ^L text ^L\n"); - exit(1); -} - -#endif /* !WIN32 */ diff --git a/gc/cord/de_cmds.h b/gc/cord/de_cmds.h deleted file mode 100644 index f42ddcf..0000000 --- a/gc/cord/de_cmds.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Copyright (c) 1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - */ -/* Boehm, May 19, 1994 2:24 pm PDT */ - -#ifndef DE_CMDS_H - -# define DE_CMDS_H - -# define UP 16 /* ^P */ -# define DOWN 14 /* ^N */ -# define LEFT 2 /* ^B */ -# define RIGHT 6 /* ^F */ -# define DEL 127 /* ^? */ -# define BS 8 /* ^H */ -# define UNDO 21 /* ^U */ -# define WRITE 23 /* ^W */ -# define QUIT 4 /* ^D */ -# define REPEAT 18 /* ^R */ -# define LOCATE 12 /* ^L */ -# define TOP 20 /* ^T */ - -#endif - diff --git a/gc/cord/de_win.ICO b/gc/cord/de_win.ICO Binary files differdeleted file mode 100755 index b20ac3e..0000000 --- a/gc/cord/de_win.ICO +++ /dev/null diff --git a/gc/cord/de_win.RC b/gc/cord/de_win.RC deleted file mode 100644 index 554a300..0000000 --- a/gc/cord/de_win.RC +++ /dev/null @@ -1,78 +0,0 @@ -/* - * Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to copy this garbage collector for any purpose, - * provided the above notices are retained on all copies. - */ -/* Boehm, May 13, 1994 9:50 am PDT */ - -#include "windows.h" -#include "de_cmds.h" -#include "de_win.h" - - - -ABOUTBOX DIALOG 19, 21, 163, 47 -STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU -CAPTION "About Demonstration Text Editor" -BEGIN - ICON "DE", -1, 8, 8, 13, 13, WS_CHILD | WS_VISIBLE - LTEXT "Demonstration Text Editor", -1, 44, 8, 118, 8, WS_CHILD | WS_VISIBLE | WS_GROUP - LTEXT "Version 4.1", -1, 44, 16, 60, 8, WS_CHILD | WS_VISIBLE | WS_GROUP - PUSHBUTTON "OK", IDOK, 118, 27, 24, 14, WS_CHILD | WS_VISIBLE | WS_TABSTOP -END - - -DE MENU -BEGIN - POPUP "&File" - BEGIN - MENUITEM "&Save\t^W", IDM_FILESAVE - MENUITEM "E&xit\t^D", IDM_FILEEXIT - END - - POPUP "&Edit" - BEGIN - MENUITEM "Page &Down\t^R^N", IDM_EDITPDOWN - MENUITEM "Page &Up\t^R^P", IDM_EDITPUP - MENUITEM "U&ndo\t^U", IDM_EDITUNDO - MENUITEM "&Locate\t^L ... ^L", IDM_EDITLOCATE - MENUITEM "D&own\t^N", IDM_EDITDOWN - MENUITEM "U&p\t^P", IDM_EDITUP - MENUITEM "Le&ft\t^B", IDM_EDITLEFT - MENUITEM "&Right\t^F", IDM_EDITRIGHT - MENUITEM "Delete &Backward\tBS", IDM_EDITBS - MENUITEM "Delete F&orward\tDEL", IDM_EDITDEL - MENUITEM "&Top\t^T", IDM_EDITTOP - END - - POPUP "&Help" - BEGIN - MENUITEM "&Contents", IDM_HELPCONTENTS - MENUITEM "&About...", IDM_HELPABOUT - END - - MENUITEM "Page_&Down", IDM_EDITPDOWN - MENUITEM "Page_&Up", IDM_EDITPUP -END - - -DE ACCELERATORS -BEGIN - "^R", IDM_EDITREPEAT - "^N", IDM_EDITDOWN - "^P", IDM_EDITUP - "^L", IDM_EDITLOCATE - "^B", IDM_EDITLEFT - "^F", IDM_EDITRIGHT - "^T", IDM_EDITTOP - VK_DELETE, IDM_EDITDEL, VIRTKEY - VK_BACK, IDM_EDITBS, VIRTKEY -END - - -DE ICON cord\de_win.ICO - diff --git a/gc/cord/de_win.c b/gc/cord/de_win.c deleted file mode 100644 index fedbfbe..0000000 --- a/gc/cord/de_win.c +++ /dev/null @@ -1,366 +0,0 @@ -/* - * Copyright (c) 1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - */ -/* Boehm, February 6, 1995 12:29 pm PST */ - -/* - * The MS Windows specific part of de. - * This started as the generic Windows application template - * made available by Rob Haack (rhaack@polaris.unm.edu), but - * significant parts didn't survive to the final version. - * - * This was written by a nonexpert windows programmer. - */ - - -#include "windows.h" -#include "gc.h" -#include "cord.h" -#include "de_cmds.h" -#include "de_win.h" - -int LINES = 0; -int COLS = 0; - -char szAppName[] = "DE"; -char FullAppName[] = "Demonstration Editor"; - -HWND hwnd; - -void de_error(char *s) -{ - MessageBox( hwnd, (LPSTR) s, - (LPSTR) FullAppName, - MB_ICONINFORMATION | MB_OK ); - InvalidateRect(hwnd, NULL, TRUE); -} - -int APIENTRY WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, - LPSTR command_line, int nCmdShow) -{ - MSG msg; - WNDCLASS wndclass; - HANDLE hAccel; - - if (!hPrevInstance) - { - wndclass.style = CS_HREDRAW | CS_VREDRAW; - wndclass.lpfnWndProc = WndProc; - wndclass.cbClsExtra = 0; - wndclass.cbWndExtra = DLGWINDOWEXTRA; - wndclass.hInstance = hInstance; - wndclass.hIcon = LoadIcon (hInstance, szAppName); - wndclass.hCursor = LoadCursor (NULL, IDC_ARROW); - wndclass.hbrBackground = GetStockObject(WHITE_BRUSH); - wndclass.lpszMenuName = "DE"; - wndclass.lpszClassName = szAppName; - - if (RegisterClass (&wndclass) == 0) { - char buf[50]; - - sprintf(buf, "RegisterClass: error code: 0x%X", GetLastError()); - de_error(buf); - return(0); - } - } - - /* Empirically, the command line does not include the command name ... - if (command_line != 0) { - while (isspace(*command_line)) command_line++; - while (*command_line != 0 && !isspace(*command_line)) command_line++; - while (isspace(*command_line)) command_line++; - } */ - - if (command_line == 0 || *command_line == 0) { - de_error("File name argument required"); - return( 0 ); - } else { - char *p = command_line; - - while (*p != 0 && !isspace(*p)) p++; - arg_file_name = CORD_to_char_star( - CORD_substr(command_line, 0, p - command_line)); - } - - hwnd = CreateWindow (szAppName, - FullAppName, - WS_OVERLAPPEDWINDOW | WS_CAPTION, /* Window style */ - CW_USEDEFAULT, 0, /* default pos. */ - CW_USEDEFAULT, 0, /* default width, height */ - NULL, /* No parent */ - NULL, /* Window class menu */ - hInstance, NULL); - if (hwnd == NULL) { - char buf[50]; - - sprintf(buf, "CreateWindow: error code: 0x%X", GetLastError()); - de_error(buf); - return(0); - } - - ShowWindow (hwnd, nCmdShow); - - hAccel = LoadAccelerators( hInstance, szAppName ); - - while (GetMessage (&msg, NULL, 0, 0)) - { - if( !TranslateAccelerator( hwnd, hAccel, &msg ) ) - { - TranslateMessage (&msg); - DispatchMessage (&msg); - } - } - return msg.wParam; -} - -/* Return the argument with all control characters replaced by blanks. */ -char * plain_chars(char * text, size_t len) -{ - char * result = GC_MALLOC_ATOMIC(len + 1); - register size_t i; - - for (i = 0; i < len; i++) { - if (iscntrl(text[i])) { - result[i] = ' '; - } else { - result[i] = text[i]; - } - } - result[len] = '\0'; - return(result); -} - -/* Return the argument with all non-control-characters replaced by */ -/* blank, and all control characters c replaced by c + 32. */ -char * control_chars(char * text, size_t len) -{ - char * result = GC_MALLOC_ATOMIC(len + 1); - register size_t i; - - for (i = 0; i < len; i++) { - if (iscntrl(text[i])) { - result[i] = text[i] + 0x40; - } else { - result[i] = ' '; - } - } - result[len] = '\0'; - return(result); -} - -int char_width; -int char_height; - -void get_line_rect(int line, int win_width, RECT * rectp) -{ - rectp -> top = line * char_height; - rectp -> bottom = rectp->top + char_height; - rectp -> left = 0; - rectp -> right = win_width; -} - -int caret_visible = 0; /* Caret is currently visible. */ - -int screen_was_painted = 0;/* Screen has been painted at least once. */ - -void update_cursor(void); - -LRESULT CALLBACK WndProc (HWND hwnd, UINT message, - WPARAM wParam, LPARAM lParam) -{ - static FARPROC lpfnAboutBox; - static HANDLE hInstance; - HDC dc; - PAINTSTRUCT ps; - RECT client_area; - RECT this_line; - RECT dummy; - TEXTMETRIC tm; - register int i; - int id; - - switch (message) - { - case WM_CREATE: - hInstance = ( (LPCREATESTRUCT) lParam)->hInstance; - lpfnAboutBox = MakeProcInstance( (FARPROC) AboutBox, hInstance ); - dc = GetDC(hwnd); - SelectObject(dc, GetStockObject(SYSTEM_FIXED_FONT)); - GetTextMetrics(dc, &tm); - ReleaseDC(hwnd, dc); - char_width = tm.tmAveCharWidth; - char_height = tm.tmHeight + tm.tmExternalLeading; - GetClientRect(hwnd, &client_area); - COLS = (client_area.right - client_area.left)/char_width; - LINES = (client_area.bottom - client_area.top)/char_height; - generic_init(); - return(0); - - case WM_CHAR: - if (wParam == QUIT) { - SendMessage( hwnd, WM_CLOSE, 0, 0L ); - } else { - do_command(wParam); - } - return(0); - - case WM_SETFOCUS: - CreateCaret(hwnd, NULL, char_width, char_height); - ShowCaret(hwnd); - caret_visible = 1; - update_cursor(); - return(0); - - case WM_KILLFOCUS: - HideCaret(hwnd); - DestroyCaret(); - caret_visible = 0; - return(0); - - case WM_LBUTTONUP: - { - unsigned xpos = LOWORD(lParam); /* From left */ - unsigned ypos = HIWORD(lParam); /* from top */ - - set_position( xpos/char_width, ypos/char_height ); - return(0); - } - - case WM_COMMAND: - id = LOWORD(wParam); - if (id & EDIT_CMD_FLAG) { - if (id & REPEAT_FLAG) do_command(REPEAT); - do_command(CHAR_CMD(id)); - return( 0 ); - } else { - switch(id) { - case IDM_FILEEXIT: - SendMessage( hwnd, WM_CLOSE, 0, 0L ); - return( 0 ); - - case IDM_HELPABOUT: - if( DialogBox( hInstance, "ABOUTBOX", - hwnd, lpfnAboutBox ) ); - InvalidateRect( hwnd, NULL, TRUE ); - return( 0 ); - case IDM_HELPCONTENTS: - de_error( - "Cursor keys: ^B(left) ^F(right) ^P(up) ^N(down)\n" - "Undo: ^U Write: ^W Quit:^D Repeat count: ^R[n]\n" - "Top: ^T Locate (search, find): ^L text ^L\n"); - return( 0 ); - } - } - break; - - case WM_CLOSE: - DestroyWindow( hwnd ); - return 0; - - case WM_DESTROY: - PostQuitMessage (0); - GC_win32_free_heap(); - return 0; - - case WM_PAINT: - dc = BeginPaint(hwnd, &ps); - GetClientRect(hwnd, &client_area); - COLS = (client_area.right - client_area.left)/char_width; - LINES = (client_area.bottom - client_area.top)/char_height; - SelectObject(dc, GetStockObject(SYSTEM_FIXED_FONT)); - for (i = 0; i < LINES; i++) { - get_line_rect(i, client_area.right, &this_line); - if (IntersectRect(&dummy, &this_line, &ps.rcPaint)) { - CORD raw_line = retrieve_screen_line(i); - size_t len = CORD_len(raw_line); - char * text = CORD_to_char_star(raw_line); - /* May contain embedded NULLs */ - char * plain = plain_chars(text, len); - char * blanks = CORD_to_char_star(CORD_chars(' ', - COLS - len)); - char * control = control_chars(text, len); -# define RED RGB(255,0,0) - - SetBkMode(dc, OPAQUE); - SetTextColor(dc, GetSysColor(COLOR_WINDOWTEXT)); - - TextOut(dc, this_line.left, this_line.top, - plain, len); - TextOut(dc, this_line.left + len * char_width, this_line.top, - blanks, COLS - len); - SetBkMode(dc, TRANSPARENT); - SetTextColor(dc, RED); - TextOut(dc, this_line.left, this_line.top, - control, strlen(control)); - } - } - EndPaint(hwnd, &ps); - screen_was_painted = 1; - return 0; - } - return DefWindowProc (hwnd, message, wParam, lParam); -} - -int last_col; -int last_line; - -void move_cursor(int c, int l) -{ - last_col = c; - last_line = l; - - if (caret_visible) update_cursor(); -} - -void update_cursor(void) -{ - SetCaretPos(last_col * char_width, last_line * char_height); - ShowCaret(hwnd); -} - -void invalidate_line(int i) -{ - RECT line; - - if (!screen_was_painted) return; - /* Invalidating a rectangle before painting seems result in a */ - /* major performance problem. */ - get_line_rect(i, COLS*char_width, &line); - InvalidateRect(hwnd, &line, FALSE); -} - -LRESULT CALLBACK AboutBox( HWND hDlg, UINT message, - WPARAM wParam, LPARAM lParam ) -{ - switch( message ) - { - case WM_INITDIALOG: - SetFocus( GetDlgItem( hDlg, IDOK ) ); - break; - - case WM_COMMAND: - switch( wParam ) - { - case IDOK: - EndDialog( hDlg, TRUE ); - break; - } - break; - - case WM_CLOSE: - EndDialog( hDlg, TRUE ); - return TRUE; - - } - return FALSE; -} - diff --git a/gc/cord/de_win.h b/gc/cord/de_win.h deleted file mode 100644 index 57a47b4..0000000 --- a/gc/cord/de_win.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (c) 1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - */ -/* Boehm, May 19, 1994 2:25 pm PDT */ - -/* cord.h, de_cmds.h, and windows.h should be included before this. */ - - -# define OTHER_FLAG 0x100 -# define EDIT_CMD_FLAG 0x200 -# define REPEAT_FLAG 0x400 - -# define CHAR_CMD(i) ((i) & 0xff) - -/* MENU: DE */ -#define IDM_FILESAVE (EDIT_CMD_FLAG + WRITE) -#define IDM_FILEEXIT (OTHER_FLAG + 1) -#define IDM_HELPABOUT (OTHER_FLAG + 2) -#define IDM_HELPCONTENTS (OTHER_FLAG + 3) - -#define IDM_EDITPDOWN (REPEAT_FLAG + EDIT_CMD_FLAG + DOWN) -#define IDM_EDITPUP (REPEAT_FLAG + EDIT_CMD_FLAG + UP) -#define IDM_EDITUNDO (EDIT_CMD_FLAG + UNDO) -#define IDM_EDITLOCATE (EDIT_CMD_FLAG + LOCATE) -#define IDM_EDITDOWN (EDIT_CMD_FLAG + DOWN) -#define IDM_EDITUP (EDIT_CMD_FLAG + UP) -#define IDM_EDITLEFT (EDIT_CMD_FLAG + LEFT) -#define IDM_EDITRIGHT (EDIT_CMD_FLAG + RIGHT) -#define IDM_EDITBS (EDIT_CMD_FLAG + BS) -#define IDM_EDITDEL (EDIT_CMD_FLAG + DEL) -#define IDM_EDITREPEAT (EDIT_CMD_FLAG + REPEAT) -#define IDM_EDITTOP (EDIT_CMD_FLAG + TOP) - - - - -/* Windows UI stuff */ - -LRESULT CALLBACK WndProc (HWND hwnd, UINT message, - UINT wParam, LONG lParam); - -LRESULT CALLBACK AboutBox( HWND hDlg, UINT message, - UINT wParam, LONG lParam ); - - -/* Screen dimensions. Maintained by de_win.c. */ -extern int LINES; -extern int COLS; - -/* File being edited. */ -extern char * arg_file_name; - -/* Current display position in file. Maintained by de.c */ -extern int dis_line; -extern int dis_col; - -/* Current cursor position in file. */ -extern int line; -extern int col; - -/* - * Calls from de_win.c to de.c - */ - -CORD retrieve_screen_line(int i); - /* Get the contents of i'th screen line. */ - /* Relies on COLS. */ - -void set_position(int x, int y); - /* Set column, row. Upper left of window = (0,0). */ - -void do_command(int); - /* Execute an editor command. */ - /* Agument is a command character or one */ - /* of the IDM_ commands. */ - -void generic_init(void); - /* OS independent initialization */ - - -/* - * Calls from de.c to de_win.c - */ - -void move_cursor(int column, int line); - /* Physically move the cursor on the display, */ - /* so that it appears at */ - /* (column, line). */ - -void invalidate_line(int line); - /* Invalidate line i on the screen. */ - -void de_error(char *s); - /* Display error message. */
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