3 * File name: ir/ir/irprintf.c
4 * Purpose: A little printf helper unterstanding firm types
5 * Author: Sebastian Hack
8 * Copyright: (c) 1998-2004 Universität Karlsruhe
9 * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
15 * A little printf helper unterstanding firm types.
16 * @author Sebastian Hack
44 * append a char to a string buffer
46 static void str_append_char(void *object, size_t n, char ch)
53 strncat(object, buf, n);
57 * append a string to a string buffer
59 static void str_append_str(void *object, size_t n, const char *str)
61 strncat(object, str, n);
65 * append a char to a file
67 static void file_append_char(void *object, size_t n, char ch)
73 * append a string to a file
75 static void file_append_str(void *object, size_t n, const char *str)
83 static const appender_t file_appender = {
89 * the string buffer appender
91 static const appender_t str_appender = {
96 static void ir_common_vprintf(const appender_t *app, void *object,
97 size_t limit, const char *fmt, va_list args);
99 static INLINE void ir_common_printf(const appender_t *app, void *object,
100 size_t limit, const char *fmt, ...)
105 ir_common_vprintf(app, object, limit, fmt, args);
110 static int is_std_fmt(const char *fmt)
112 static const char *fmt_re_str =
113 "^[0 -+#']?[1-9]*(\\.[1-9]*)?[hlLqjzt]?[diouxXeEfFgGaAc]";
115 static regex_t fmt_re;
116 static int preapred_re = 0;
122 int res = regcomp(&fmt_re, fmt_re_str, REG_EXTENDED);
123 assert(res == 0 && "Could not prepare regex");
127 res = regexec(&fmt_re, fmt, 1, &match[0], 0);
132 regerror(res, &fmt_re, buf, sizeof(buf));
136 printf("res: %d, start: %d, end: %d\n",
137 res, match[0].rm_so, match[0].rm_eo);
140 return res == 0 ? match[0].rm_eo : -1;
152 #define MIN(x,y) ((x) < (y) ? (x) : (y))
153 #define MAX(x,y) ((x) > (y) ? (x) : (y))
156 static void dump_with_settings(const appender_t *app, void *object, size_t limit,
157 const struct settings *settings, const char *str)
159 if(settings->width >= 0) {
161 size_t n = strlen(str);
162 int lim = MIN(settings->width, limit);
163 int to_print = MIN(lim, n);
164 int to_pad = to_print - lim;
166 if(!settings->left_just)
167 for(i = 0; i < to_pad; ++i)
168 app->append_char(object, lim, settings->pad);
170 app->append_str(object, to_print, str);
172 if(!settings->left_just)
173 for(i = 0; i < to_pad; ++i)
174 app->append_char(object, lim, settings->pad);
178 app->append_str(object, limit, str);
183 /* Length specifiers. */
194 * A small printf helper routine for ir nodes.
195 * @param app An appender (this determines where the stuff is dumped
197 * @param object A target passed to the appender.
198 * @param limit The maximum number of characters to dump.
199 * @param fmt The format string.
200 * @param args A va_list.
202 static void ir_common_vprintf(const appender_t *app, void *object,
203 size_t limit, const char *fmt, va_list args)
209 #define DUMP_STR(s) app->append_str(object, limit, s)
210 #define DUMP_CH(ch) app->append_char(object, limit, ch)
212 for(i = 0, n = strlen(fmt); i < n; ++i) {
217 const char *len_str = "";
219 struct settings settings;
221 settings.alternate = 0;
224 settings.left_just = 0;
225 settings.put_plus = 0;
229 /* Clear the temporary buffer */
232 /* Set the string to print to the buffer by default. */
235 while(strchr("#0-+", ch)) {
238 settings.alternate = 1;
244 settings.left_just = 1;
247 settings.put_plus = 1;
255 /* Read the field width */
260 settings.width = (int) strtol(&fmt[i], &endptr, 10);
261 increase = (char *) endptr - &fmt[i];
262 ch = fmt[i += increase];
267 /* Ignore the precision */
269 while(isdigit(ch = fmt[++i]));
271 /* read the length modifier. */
276 if((ch = fmt[++i]) == 'h') {
285 if((ch = fmt[++i]) == 'l') {
295 /* Do the conversion specifier. */
298 /* The percent itself */
305 buf[0] = va_arg(args, int);
310 str = va_arg(args, const char *);
314 snprintf(buf, sizeof(buf), "%p", va_arg(args, void *));
323 snprintf(fmt_str, sizeof(fmt_str), "%%%s%c", len_str, ch);
324 vsnprintf(buf, sizeof(buf), fmt_str, args);
329 str = get_id_str(va_arg(args, ident *));
333 str = get_entity_name(va_arg(args, entity *));
337 str = get_entity_ld_name(va_arg(args, entity *));
341 tarval_snprintf(buf, sizeof(buf), va_arg(args, tarval *));
346 ir_node *irn = va_arg(args, ir_node *);
347 snprintf(buf, sizeof(buf), "%s%s:%ld",
348 get_irn_opname(irn), get_mode_name(get_irn_mode(irn)), get_irn_node_nr(irn));
353 str = get_irn_opname(va_arg(args, ir_node *));
357 snprintf(buf, sizeof(buf), "%ld", get_irn_node_nr(va_arg(args, ir_node *)));
361 str = get_mode_name(va_arg(args, ir_mode *));
365 snprintf(buf, sizeof(buf), "%ld",
366 get_irn_node_nr(get_nodes_block(va_arg(args, ir_node *))));
371 iterator_t *it = va_arg(args, iterator_t *);
372 void *collection = va_arg(args, void *);
374 const char *prefix = "";
375 char format = fmt[++i];
376 ir_printf_cb_t *cb = format == 'C' ? va_arg(args, ir_printf_cb_t *) : NULL;
378 assert(is_iterator(it) && "Pass an iterator interface and the collection");
380 snprintf(buf, sizeof(buf), "%%%c", format);
383 for(curr = it->start(collection); curr; curr = it->next(collection, curr)) {
387 cb(app, object, limit, curr);
389 ir_common_printf(app, object, limit, buf, curr);
393 it->finish(collection, curr);
398 /* clean the buffer again */
403 dump_with_settings(app, object, limit, &settings, str);
415 * Convencience for stdout dumping.
417 void ir_printf(const char *fmt, ...)
421 ir_common_vprintf(&file_appender, stdout, 0, fmt, args);
426 * Convencience for file dumping.
428 void ir_fprintf(FILE *f, const char *fmt, ...)
432 ir_common_vprintf(&file_appender, f, 0, fmt, args);
437 * Convencience for string dumping.
439 void ir_snprintf(char *buf, size_t len, const char *fmt, ...)
443 ir_common_vprintf(&str_appender, buf, len, fmt, args);