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77 lines
1.5 KiB
77 lines
1.5 KiB
/*
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* /lub/string/string_word.c
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*/
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#include <stddef.h>
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#include <ctype.h>
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#include "private.h"
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#include "lub/types.h"
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/*--------------------------------------------------------- */
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const char *lub_string_nextword(const char *string,
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size_t *len, size_t *offset, size_t *quoted)
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{
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const char *word;
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*quoted = 0;
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/* Find the start of a word (not including an opening quote) */
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while (*string && isspace(*string)) {
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string++;
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(*offset)++;
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}
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/* Is this the start of a quoted string ? */
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if (*string == '"') {
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*quoted = 1;
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string++;
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}
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word = string;
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*len = 0;
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/* Find the end of the word */
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while (*string) {
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if (*string == '\\') {
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string++;
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(*len)++;
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if (*string) {
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(*len)++;
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string++;
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}
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continue;
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}
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/* End of word */
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if (!*quoted && isspace(*string))
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break;
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if (*string == '"') {
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/* End of a quoted string */
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*quoted = 2;
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break;
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}
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(*len)++;
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string++;
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}
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return word;
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}
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/*--------------------------------------------------------- */
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unsigned int lub_string_wordcount(const char *line)
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{
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const char *word;
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unsigned int result = 0;
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size_t len = 0, offset = 0;
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size_t quoted;
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for (word = lub_string_nextword(line, &len, &offset, "ed);
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*word || quoted;
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word = lub_string_nextword(word + len, &len, &offset, "ed)) {
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/* account for the terminating quotation mark */
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len += quoted ? quoted - 1 : 0;
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result++;
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}
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return result;
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}
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/*--------------------------------------------------------- */
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