63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
#include "input.h"
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enum { READ, DISCARD };
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void libscomm_reset(struct libscomm_input *in) {
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in->state = READ;
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in->len = 0;
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}
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static enum libscomm_input_r parse(struct libscomm_input *in,
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struct libscomm_line *line) {
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char *s = in->intbuf;
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enum libscomm_input_r r = LIBSCOMM_ARG_OVERFLOW;
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line->name = (*s == ':');
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line->len = 0;
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while (line->len < LIBSCOMM_MAXARG) {
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line->buf[line->len++] = s;
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for (; *s && *s != '\t'; s++);
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if (!*s) {
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r = LIBSCOMM_COMPLETE;
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break;
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} else {
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*s = 0;
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s++;
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}
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}
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libscomm_reset(in);
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return r;
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}
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enum libscomm_input_r libscomm_read(struct libscomm_input *in,
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char **s,
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struct libscomm_line *line) {
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char c;
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while ((c = **s)) {
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(*s)++;
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if (in->state == DISCARD) {
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if (c == '\n') {
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libscomm_reset(in);
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return LIBSCOMM_OVERFLOW;
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}
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} else {
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switch (c) {
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case '\n':
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in->intbuf[in->len] = 0;
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return parse(in, line);
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default:
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in->intbuf[in->len++] = c;
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if (in->len == LIBSCOMM_MAXBUF)
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in->state = DISCARD;
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}
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}
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}
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return LIBSCOMM_MORE;
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}
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