diff options
Diffstat (limited to 'libmdocml.c')
| -rw-r--r-- | libmdocml.c | 212 |
1 files changed, 176 insertions, 36 deletions
diff --git a/libmdocml.c b/libmdocml.c index 07513496..d851a962 100644 --- a/libmdocml.c +++ b/libmdocml.c @@ -1,4 +1,4 @@ -/* $Id: libmdocml.c,v 1.2 2008/11/22 18:34:06 kristaps Exp $ */ +/* $Id: libmdocml.c,v 1.3 2008/11/22 20:15:34 kristaps Exp $ */ /* * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> * @@ -28,12 +28,48 @@ #define BUFFER_LINE BUFSIZ -typedef int (*md_line) (struct md_mbuf *, const struct md_rbuf *, +struct md_rbuf { + int fd; + char *name; + char *buf; + size_t bufsz; + size_t line; +}; + +struct md_mbuf { + int fd; + char *name; + char *buf; + size_t bufsz; + size_t pos; +}; + +typedef int (*md_line) (const struct md_args *, struct md_mbuf *, + const struct md_rbuf *, + const char *, size_t); +typedef int (*md_init) (const struct md_args *, struct md_mbuf *); +typedef int (*md_exit) (const struct md_args *, struct md_mbuf *); + +static int md_line_dummy(const struct md_args *, + struct md_mbuf *, + const struct md_rbuf *, const char *, size_t); -static int md_line_dummy(struct md_mbuf *, +static int md_line_html4_strict(const struct md_args *, + struct md_mbuf *, const struct md_rbuf *, const char *, size_t); +static int md_init_html4_strict(const struct md_args *, + struct md_mbuf *); +static int md_exit_html4_strict(const struct md_args *, + struct md_mbuf *); + +static int md_run_enter(const struct md_args *, + struct md_mbuf *, struct md_rbuf *); +static int md_run_leave(const struct md_args *, + struct md_mbuf *, + struct md_rbuf *, int); + static ssize_t md_buf_fill(struct md_rbuf *); static int md_buf_flush(struct md_mbuf *); static int md_buf_putchar(struct md_mbuf *, char); @@ -41,7 +77,7 @@ static int md_buf_puts(struct md_mbuf *, const char *, size_t); -ssize_t +static ssize_t md_buf_fill(struct md_rbuf *in) { ssize_t ssz; @@ -58,7 +94,7 @@ md_buf_fill(struct md_rbuf *in) } -int +static int md_buf_flush(struct md_mbuf *buf) { ssize_t sz; @@ -85,14 +121,14 @@ md_buf_flush(struct md_mbuf *buf) } -int +static int md_buf_putchar(struct md_mbuf *buf, char c) { return(md_buf_puts(buf, &c, 1)); } -int +static int md_buf_puts(struct md_mbuf *buf, const char *p, size_t sz) { size_t ssz; @@ -121,73 +157,177 @@ md_buf_puts(struct md_mbuf *buf, const char *p, size_t sz) } -int -md_run(enum md_type type, struct md_mbuf *out, struct md_rbuf *in) +static int +md_run_leave(const struct md_args *args, + struct md_mbuf *mbuf, struct md_rbuf *rbuf, int c) { - ssize_t sz, i; - char line[BUFFER_LINE]; - size_t pos; - md_line func; + assert(args); + assert(mbuf); + assert(rbuf); + + /* Run exiters. */ + switch (args->type) { + case (MD_HTML4_STRICT): + if ( ! md_exit_html4_strict(args, mbuf)) + return(-1); + break; + case (MD_DUMMY): + break; + default: + abort(); + } - assert(in); - assert(out); + /* Make final flush of buffer. */ + if ( ! md_buf_flush(mbuf)) + return(-1); + + return(c); +} - out->pos = 0; - in->line = 1; - assert(MD_DUMMY == type); - func = md_line_dummy; +static int +md_run_enter(const struct md_args *args, + struct md_mbuf *mbuf, struct md_rbuf *rbuf) +{ + ssize_t sz, i; + char line[BUFFER_LINE]; + size_t pos; + md_line fp; + + assert(args); + assert(mbuf); + assert(rbuf); + + /* Function ptrs to line-parsers. */ + switch (args->type) { + case (MD_HTML4_STRICT): + fp = md_line_html4_strict; + break; + case (MD_DUMMY): + fp = md_line_dummy; + break; + default: + abort(); + } /* LINTED */ for (pos = 0; ; ) { - if (-1 == (sz = md_buf_fill(in))) - return(1); + if (-1 == (sz = md_buf_fill(rbuf))) + return(-1); else if (0 == sz) break; for (i = 0; i < sz; i++) { - if ('\n' == in->buf[i]) { - if ((*func)(out, in, line, pos)) - return(1); - in->line++; + if ('\n' == rbuf->buf[i]) { + if ( ! (*fp)(args, mbuf, rbuf, line, pos)) + return(-1); + rbuf->line++; pos = 0; continue; } if (pos < BUFFER_LINE) { /* LINTED */ - line[pos++] = in->buf[i]; + line[pos++] = rbuf->buf[i]; continue; } warnx("%s: line %zu too long", - in->name, in->line); - return(1); + rbuf->name, rbuf->line); + return(-1); } } - if (0 != pos && (*func)(out, in, line, pos)) - return(1); + if (0 != pos && ! (*fp)(args, mbuf, rbuf, line, pos)) + return(-1); - return(md_buf_flush(out) ? 0 : 1); + return(md_run_leave(args, mbuf, rbuf, 0)); +} + + +int +md_run(const struct md_args *args, + const struct md_buf *out, const struct md_buf *in) +{ + struct md_mbuf mbuf; + struct md_rbuf rbuf; + + assert(args); + assert(in); + assert(out); + + (void)memcpy(&mbuf, out, sizeof(struct md_buf)); + (void)memcpy(&rbuf, in, sizeof(struct md_buf)); + + mbuf.pos = 0; + rbuf.line = 1; + + /* Run initialisers. */ + switch (args->type) { + case (MD_HTML4_STRICT): + if ( ! md_init_html4_strict(args, &mbuf)) + return(-1); + break; + case (MD_DUMMY): + break; + default: + abort(); + } + + /* Go into mainline. */ + return(md_run_enter(args, &mbuf, &rbuf)); } static int -md_line_dummy(struct md_mbuf *out, const struct md_rbuf *in, - const char *buf, size_t sz) +md_line_dummy(const struct md_args *args, struct md_mbuf *out, + const struct md_rbuf *in, const char *buf, size_t sz) { assert(buf); assert(out); assert(in); + assert(args); if ( ! md_buf_puts(out, buf, sz)) - return(1); + return(0); if ( ! md_buf_putchar(out, '\n')) - return(1); + return(0); - return(0); + return(1); +} + + +static int +md_exit_html4_strict(const struct md_args *args, struct md_mbuf *p) +{ + + assert(p); + assert(args); + return(1); } +static int +md_init_html4_strict(const struct md_args *args, struct md_mbuf *p) +{ + + assert(p); + assert(args); + return(1); +} + + +static int +md_line_html4_strict(const struct md_args *args, struct md_mbuf *out, + const struct md_rbuf *in, const char *buf, size_t sz) +{ + + assert(args); + assert(buf); + assert(out); + assert(in); + (void)sz; + + return(1); +} |