138 lines
1.7 KiB
C++
138 lines
1.7 KiB
C++
#include <cstdlib>
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#include <pbd/unescape.h>
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void
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unescape (char *str)
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{
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char *p;
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bool escaped;
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long offset;
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char octal[4];
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int noct;
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char hex[3];
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int nhex;
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escaped = false;
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offset = 0;
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octal[3] = '\0';
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hex[2] = '\0';
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p = str;
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while (*p) {
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if (!escaped) {
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if (*p == '\\') {
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escaped = true;
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} else {
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*(p-offset) = *p;
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}
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p++;
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continue;
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}
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switch (*p) {
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case 'f':
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offset++;
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*(p-offset) = '\f';
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break;
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case 'r':
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offset++;
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*(p-offset) = '\r';
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break;
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case 'v':
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offset++;
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*(p-offset) = '\v';
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break;
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case 'n':
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offset++;
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*(p-offset) = '\n';
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break;
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case 't':
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offset++;
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*(p-offset) = '\t';
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break;
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case 'b':
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offset++;
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*(p-offset) = '\b';
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break;
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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noct = 0;
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while (noct < 3 &&
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(*p >= '0' && *p <= '7')) {
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octal[noct++] = *p;
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offset++;
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p++;
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}
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p--;
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*(p-offset) = strtol (octal, 0, 8);
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break;
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case 'x':
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nhex = 0;
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p++;
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offset++;
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while (nhex < 2 &&
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((*p >= '0' && *p <= '9') ||
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(*p >= 'a' && *p <= 'f') ||
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(*p >= 'A' && *p <= 'F'))) {
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hex[nhex++] = *p;
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offset++;
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p++;
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}
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p--;
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*(p-offset) = strtol (hex, 0, 16);
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break;
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case '\\':
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offset++;
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*(p-offset) = '\\';
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break;
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case '"':
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offset++;
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*(p-offset) = '"';
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break;
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case '\'':
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offset++;
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*(p-offset) = '\'';
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break;
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default:
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*(p-offset) = *p;
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}
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escaped = false;
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p++;
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}
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*(p-offset) = '\0';
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}
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#ifdef TEST
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#include <cstdio>
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main (int argc, char *argv[])
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{
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unescape (argv[1]);
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printf ("%s\n", argv[1]);
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}
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#endif
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