version 1.1, 2008/11/22 14:53:29 |
version 1.2, 2008/11/22 18:34:06 |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
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#include <assert.h> |
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#include <fcntl.h> |
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#include <err.h> |
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#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "libmdocml.h" |
#include "libmdocml.h" |
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#define BUFFER_LINE BUFSIZ |
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typedef int (*md_line) (struct md_mbuf *, const struct md_rbuf *, |
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const char *, size_t); |
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static int md_line_dummy(struct md_mbuf *, |
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const struct md_rbuf *, |
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const char *, size_t); |
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static ssize_t md_buf_fill(struct md_rbuf *); |
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static int md_buf_flush(struct md_mbuf *); |
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static int md_buf_putchar(struct md_mbuf *, char); |
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static int md_buf_puts(struct md_mbuf *, |
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const char *, size_t); |
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ssize_t |
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md_buf_fill(struct md_rbuf *in) |
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{ |
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ssize_t ssz; |
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assert(in); |
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assert(in->buf); |
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assert(in->bufsz > 0); |
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assert(in->name); |
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if (-1 == (ssz = read(in->fd, in->buf, in->bufsz))) |
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warn("%s", in->name); |
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return(ssz); |
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} |
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int |
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md_buf_flush(struct md_mbuf *buf) |
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{ |
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ssize_t sz; |
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assert(buf); |
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assert(buf->buf); |
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assert(buf->name); |
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if (0 == buf->pos) |
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return(1); |
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sz = write(buf->fd, buf->buf, buf->pos); |
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if (-1 == sz) { |
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warn("%s", buf->name); |
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return(0); |
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} else if ((size_t)sz != buf->pos) { |
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warnx("%s: short write", buf->name); |
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return(0); |
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} |
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buf->pos = 0; |
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return(1); |
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} |
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int |
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md_buf_putchar(struct md_mbuf *buf, char c) |
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{ |
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return(md_buf_puts(buf, &c, 1)); |
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} |
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int |
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md_buf_puts(struct md_mbuf *buf, const char *p, size_t sz) |
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{ |
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size_t ssz; |
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assert(p); |
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assert(buf); |
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assert(buf->buf); |
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/* LINTED */ |
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while (buf->pos + sz > buf->bufsz) { |
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ssz = buf->bufsz - buf->pos; |
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(void)memcpy(/* LINTED */ |
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buf->buf + buf->pos, p, ssz); |
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p += (long)ssz; |
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sz -= ssz; |
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buf->pos += ssz; |
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if ( ! md_buf_flush(buf)) |
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return(0); |
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} |
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(void)memcpy(/* LINTED */ |
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buf->buf + buf->pos, p, sz); |
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buf->pos += sz; |
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return(1); |
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} |
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int |
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md_run(enum md_type type, struct md_mbuf *out, struct md_rbuf *in) |
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{ |
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ssize_t sz, i; |
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char line[BUFFER_LINE]; |
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size_t pos; |
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md_line func; |
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assert(in); |
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assert(out); |
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out->pos = 0; |
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in->line = 1; |
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assert(MD_DUMMY == type); |
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func = md_line_dummy; |
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/* LINTED */ |
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for (pos = 0; ; ) { |
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if (-1 == (sz = md_buf_fill(in))) |
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return(1); |
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else if (0 == sz) |
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break; |
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for (i = 0; i < sz; i++) { |
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if ('\n' == in->buf[i]) { |
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if ((*func)(out, in, line, pos)) |
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return(1); |
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in->line++; |
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pos = 0; |
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continue; |
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} |
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if (pos < BUFFER_LINE) { |
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/* LINTED */ |
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line[pos++] = in->buf[i]; |
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continue; |
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} |
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warnx("%s: line %zu too long", |
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in->name, in->line); |
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return(1); |
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} |
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} |
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if (0 != pos && (*func)(out, in, line, pos)) |
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return(1); |
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return(md_buf_flush(out) ? 0 : 1); |
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} |
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static int |
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md_line_dummy(struct md_mbuf *out, const struct md_rbuf *in, |
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const char *buf, size_t sz) |
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{ |
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assert(buf); |
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assert(out); |
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assert(in); |
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if ( ! md_buf_puts(out, buf, sz)) |
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return(1); |
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if ( ! md_buf_putchar(out, '\n')) |
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return(1); |
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return(0); |
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} |
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