=================================================================== RCS file: /cvs/mandoc/roff.c,v retrieving revision 1.121 retrieving revision 1.127 diff -u -p -r1.121 -r1.127 --- mandoc/roff.c 2011/01/11 00:11:45 1.121 +++ mandoc/roff.c 2011/03/15 16:23:51 1.127 @@ -1,4 +1,4 @@ -/* $Id: roff.c,v 1.121 2011/01/11 00:11:45 schwarze Exp $ */ +/* $Id: roff.c,v 1.127 2011/03/15 16:23:51 kristaps Exp $ */ /* * Copyright (c) 2010, 2011 Kristaps Dzonsons * Copyright (c) 2010, 2011 Ingo Schwarze @@ -51,15 +51,21 @@ enum rofft { ROFF_ie, ROFF_if, ROFF_ig, + ROFF_it, ROFF_ne, ROFF_nh, ROFF_nr, + ROFF_ns, + ROFF_ps, ROFF_rm, ROFF_so, + ROFF_ta, ROFF_tr, ROFF_TS, ROFF_TE, ROFF_T_, + ROFF_EQ, + ROFF_EN, ROFF_cblock, ROFF_ccond, /* FIXME: remove this. */ ROFF_USERDEF, @@ -89,6 +95,9 @@ struct roff { struct tbl_node *first_tbl; /* first table parsed */ struct tbl_node *last_tbl; /* last table parsed */ struct tbl_node *tbl; /* current table being parsed */ + struct eqn_node *last_eqn; /* last equation parsed */ + struct eqn_node *first_eqn; /* first equation parsed */ + struct eqn_node *eqn; /* current equation being parsed */ }; struct roffnode { @@ -138,15 +147,17 @@ static char *roff_getname(struct roff *, char **, int static const char *roff_getstrn(const struct roff *, const char *, size_t); static enum rofferr roff_line_ignore(ROFF_ARGS); -static enum rofferr roff_line_error(ROFF_ARGS); static enum rofferr roff_nr(ROFF_ARGS); static int roff_res(struct roff *, char **, size_t *, int); +static enum rofferr roff_rm(ROFF_ARGS); static void roff_setstr(struct roff *, const char *, const char *, int); static enum rofferr roff_so(ROFF_ARGS); static enum rofferr roff_TE(ROFF_ARGS); static enum rofferr roff_TS(ROFF_ARGS); +static enum rofferr roff_EQ(ROFF_ARGS); +static enum rofferr roff_EN(ROFF_ARGS); static enum rofferr roff_T_(ROFF_ARGS); static enum rofferr roff_userdef(ROFF_ARGS); @@ -172,15 +183,21 @@ static struct roffmac roffs[ROFF_MAX] = { { "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, { "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT, NULL }, { "ig", roff_block, roff_block_text, roff_block_sub, 0, NULL }, + { "it", roff_line_ignore, NULL, NULL, 0, NULL }, { "ne", roff_line_ignore, NULL, NULL, 0, NULL }, { "nh", roff_line_ignore, NULL, NULL, 0, NULL }, { "nr", roff_nr, NULL, NULL, 0, NULL }, - { "rm", roff_line_error, NULL, NULL, 0, NULL }, + { "ns", roff_line_ignore, NULL, NULL, 0, NULL }, + { "ps", roff_line_ignore, NULL, NULL, 0, NULL }, + { "rm", roff_rm, NULL, NULL, 0, NULL }, { "so", roff_so, NULL, NULL, 0, NULL }, + { "ta", roff_line_ignore, NULL, NULL, 0, NULL }, { "tr", roff_line_ignore, NULL, NULL, 0, NULL }, { "TS", roff_TS, NULL, NULL, 0, NULL }, { "TE", roff_TE, NULL, NULL, 0, NULL }, { "T&", roff_T_, NULL, NULL, 0, NULL }, + { "EQ", roff_EQ, NULL, NULL, 0, NULL }, + { "EN", roff_EN, NULL, NULL, 0, NULL }, { ".", roff_cblock, NULL, NULL, 0, NULL }, { "\\}", roff_ccond, NULL, NULL, 0, NULL }, { NULL, roff_userdef, NULL, NULL, 0, NULL }, @@ -303,15 +320,22 @@ static void roff_free1(struct roff *r) { struct tbl_node *t; + struct eqn_node *e; - while (r->first_tbl) { - t = r->first_tbl; + while (NULL != (t = r->first_tbl)) { r->first_tbl = t->next; tbl_free(t); } r->first_tbl = r->last_tbl = r->tbl = NULL; + while (NULL != (e = r->first_eqn)) { + r->first_eqn = e->next; + eqn_free(e); + } + + r->first_eqn = r->last_eqn = r->eqn = NULL; + while (r->last) roffnode_pop(r); @@ -469,6 +493,8 @@ roff_parseln(struct roff *r, int ln, char **bufp, * First, if a scope is open and we're not a macro, pass the * text through the macro's filter. If a scope isn't open and * we're not a macro, just let it through. + * Finally, if there's an equation scope open, divert it into it + * no matter our state. */ if (r->last && ! ROFF_CTL((*bufp)[pos])) { @@ -477,18 +503,26 @@ roff_parseln(struct roff *r, int ln, char **bufp, e = (*roffs[t].text) (r, t, bufp, szp, ln, pos, pos, offs); assert(ROFF_IGN == e || ROFF_CONT == e); - if (ROFF_CONT == e && r->tbl) + if (ROFF_CONT != e) + return(e); + if (r->eqn) + return(eqn_read(&r->eqn, ln, *bufp, *offs)); + if (r->tbl) return(tbl_read(r->tbl, ln, *bufp, *offs)); - return(e); + return(ROFF_CONT); } else if ( ! ROFF_CTL((*bufp)[pos])) { + if (r->eqn) + return(eqn_read(&r->eqn, ln, *bufp, *offs)); if (r->tbl) return(tbl_read(r->tbl, ln, *bufp, *offs)); return(ROFF_CONT); - } + } else if (r->eqn) + return(eqn_read(&r->eqn, ln, *bufp, *offs)); /* * If a scope is open, go to the child handler for that macro, * as it may want to preprocess before doing anything with it. + * Don't do so if an equation is open. */ if (r->last) { @@ -524,6 +558,13 @@ roff_endparse(struct roff *r) (*r->msg)(MANDOCERR_SCOPEEXIT, r->data, r->last->line, r->last->col, NULL); + if (r->eqn) { + (*r->msg)(MANDOCERR_SCOPEEXIT, r->data, + r->eqn->eqn.line, r->eqn->eqn.pos, NULL); + eqn_end(r->eqn); + r->eqn = NULL; + } + if (r->tbl) { (*r->msg)(MANDOCERR_SCOPEEXIT, r->data, r->tbl->line, r->tbl->pos, NULL); @@ -559,7 +600,7 @@ roff_parse(struct roff *r, const char *buf, int *pos) t = (r->current_string = roff_getstrn(r, mac, maclen)) ? ROFF_USERDEF : roff_hash_find(mac, maclen); - *pos += maclen; + *pos += (int)maclen; while (buf[*pos] && ' ' == buf[*pos]) (*pos)++; @@ -935,15 +976,9 @@ static enum rofferr roff_line_ignore(ROFF_ARGS) { - return(ROFF_IGN); -} + if (ROFF_it == tok) + (*r->msg)(MANDOCERR_REQUEST, r->data, ln, ppos, "it"); -/* ARGSUSED */ -static enum rofferr -roff_line_error(ROFF_ARGS) -{ - - (*r->msg)(MANDOCERR_REQUEST, r->data, ln, ppos, roffs[tok].name); return(ROFF_IGN); } @@ -1095,6 +1130,22 @@ roff_nr(ROFF_ARGS) /* ARGSUSED */ static enum rofferr +roff_rm(ROFF_ARGS) +{ + const char *name; + char *cp; + + cp = *bufp + pos; + while ('\0' != *cp) { + name = roff_getname(r, &cp, ln, (int)(cp - *bufp)); + if ('\0' != *name) + roff_setstr(r, name, NULL, 0); + } + return(ROFF_IGN); +} + +/* ARGSUSED */ +static enum rofferr roff_TE(ROFF_ARGS) { @@ -1122,6 +1173,33 @@ roff_T_(ROFF_ARGS) /* ARGSUSED */ static enum rofferr +roff_EQ(ROFF_ARGS) +{ + struct eqn_node *e; + + assert(NULL == r->eqn); + e = eqn_alloc(ppos, ln); + + if (r->last_eqn) + r->last_eqn->next = e; + else + r->first_eqn = r->last_eqn = e; + + r->eqn = r->last_eqn = e; + return(ROFF_IGN); +} + +/* ARGSUSED */ +static enum rofferr +roff_EN(ROFF_ARGS) +{ + + (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL); + return(ROFF_IGN); +} + +/* ARGSUSED */ +static enum rofferr roff_TS(ROFF_ARGS) { struct tbl_node *t; @@ -1222,7 +1300,6 @@ roff_userdef(ROFF_ARGS) ROFF_REPARSE : ROFF_APPEND); } - static char * roff_getname(struct roff *r, char **cpp, int ln, int pos) { @@ -1256,7 +1333,6 @@ roff_getname(struct roff *r, char **cpp, int ln, int p return(name); } - /* * Store *string into the user-defined string called *name. * In multiline mode, append to an existing entry and append '\n'; @@ -1296,7 +1372,7 @@ roff_setstr(struct roff *r, const char *name, const ch * One additional byte for the '\n' in multiline mode, * and one for the terminating '\0'. */ - newch = strlen(string) + (multiline ? 2 : 1); + newch = strlen(string) + (multiline ? 2u : 1u); if (NULL == n->string) { n->string = mandoc_malloc(newch); *n->string = '\0'; @@ -1307,7 +1383,7 @@ roff_setstr(struct roff *r, const char *name, const ch } /* Skip existing content in the destination buffer. */ - c = n->string + oldch; + c = n->string + (int)oldch; /* Append new content to the destination buffer. */ while (*string) { @@ -1326,7 +1402,6 @@ roff_setstr(struct roff *r, const char *name, const ch *c = '\0'; } - static const char * roff_getstrn(const struct roff *r, const char *name, size_t len) { @@ -1339,7 +1414,6 @@ roff_getstrn(const struct roff *r, const char *name, s return(n ? n->string : NULL); } - static void roff_freestr(struct roff *r) { @@ -1360,4 +1434,11 @@ roff_span(const struct roff *r) { return(r->tbl ? tbl_span(r->tbl) : NULL); +} + +const struct eqn * +roff_eqn(const struct roff *r) +{ + + return(r->last_eqn ? &r->last_eqn->eqn : NULL); }