63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
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#ifndef RAUTOCOMPLETE_H
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#define RAUTOCOMPLETE_H
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#define R4_DEBUG
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#include "rrex4.h"
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#include "rstring_list.h"
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#define rautocomplete_new rstring_list_new
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#define rautocomplete_free rstring_list_free
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#define rautocomplete_add rstring_list_add
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#define rautocomplete_find rstring_list_find
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#define rautocomplete_t rstring_list_t
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#define rautocomplete_contains rstring_list_contains
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char *r4_escape(char *content) {
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size_t size = strlen(content) * 2 + 1;
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char *escaped = (char *)calloc(size, sizeof(char));
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char *espr = escaped;
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char *to_escape = "?*+()[]{}^$\\";
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*espr = '(';
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espr++;
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while (*content) {
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if (strchr(to_escape, *content)) {
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*espr = '\\';
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espr++;
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}
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*espr = *content;
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espr++;
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content++;
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}
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*espr = '.';
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espr++;
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*espr = '+';
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espr++;
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*espr = ')';
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espr++;
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*espr = 0;
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return escaped;
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}
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char *rautocomplete_find(rstring_list_t *list, char *expr) {
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if (!list->count)
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return NULL;
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if (!expr || !strlen(expr))
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return NULL;
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char *escaped = r4_escape(expr);
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for (unsigned int i = list->count - 1; i == 0; i--) {
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char *match;
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r4_t *r = r4(list->strings[i], escaped);
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if (r->valid && r->match_count == 1) {
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match = strdup(r->matches[0]);
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}
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r4_free(r);
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if (match) {
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free(escaped);
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return match;
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}
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}
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free(escaped);
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return NULL;
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}
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#endif
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