72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
// Some helper functions for the GC Cord library
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#include <gc/cord.h>
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#include <stdarg.h>
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#include "stdlib/util.h"
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__attribute__((format(printf, 1, 2)))
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public CORD CORD_asprintf(CORD fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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CORD c = NULL;
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CORD_vsprintf(&c, fmt, args);
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va_end(args);
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return c;
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}
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public CORD CORD_quoted(CORD str)
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{
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CORD quoted = "\"";
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CORD_pos i;
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wsign-conversion"
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CORD_FOR(i, str) {
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#pragma GCC diagnostic pop
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char c = CORD_pos_fetch(i);
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switch (c) {
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case '\a': quoted = CORD_cat(quoted, "\\a"); break;
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case '\b': quoted = CORD_cat(quoted, "\\b"); break;
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case '\x1b': quoted = CORD_cat(quoted, "\\e"); break;
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case '\f': quoted = CORD_cat(quoted, "\\f"); break;
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case '\n': quoted = CORD_cat(quoted, "\\n"); break;
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case '\r': quoted = CORD_cat(quoted, "\\r"); break;
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case '\t': quoted = CORD_cat(quoted, "\\t"); break;
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case '\v': quoted = CORD_cat(quoted, "\\v"); break;
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case '"': quoted = CORD_cat(quoted, "\\\""); break;
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case '\\': quoted = CORD_cat(quoted, "\\\\"); break;
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case '\x00' ... '\x06': case '\x0E' ... '\x1A':
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case '\x1C' ... '\x1F': case '\x7F' ... '\x7F':
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CORD_sprintf("ed, "%r\\x%02X", quoted, c);
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break;
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default: quoted = CORD_cat_char(quoted, c); break;
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}
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}
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quoted = CORD_cat_char(quoted, '"');
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return quoted;
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}
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public CORD CORD_replace(CORD c, CORD to_replace, CORD replacement)
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{
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size_t len = CORD_len(c);
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size_t replaced_len = CORD_len(to_replace);
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size_t pos = 0;
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CORD ret = CORD_EMPTY;
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while (pos < len) {
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size_t found = CORD_str(c, pos, to_replace);
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if (found == CORD_NOT_FOUND) {
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if (pos < len)
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ret = CORD_cat(ret, CORD_substr(c, pos, len));
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return ret;
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}
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if (found > pos)
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ret = CORD_cat(ret, CORD_substr(c, pos, found-pos));
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ret = CORD_cat(ret, replacement);
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pos = found + replaced_len;
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}
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return ret;
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}
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// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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