=================================================================== RCS file: /cvs/mandoc/mdoc.c,v retrieving revision 1.137 retrieving revision 1.249 diff -u -p -r1.137 -r1.249 --- mandoc/mdoc.c 2010/05/24 13:39:47 1.137 +++ mandoc/mdoc.c 2015/04/19 14:25:41 1.249 @@ -1,22 +1,21 @@ -/* $Id: mdoc.c,v 1.137 2010/05/24 13:39:47 schwarze Exp $ */ +/* $Id: mdoc.c,v 1.249 2015/04/19 14:25:41 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009 Kristaps Dzonsons + * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons + * Copyright (c) 2010, 2012-2015 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#ifdef HAVE_CONFIG_H #include "config.h" -#endif #include @@ -28,11 +27,16 @@ #include #include +#include "mandoc_aux.h" #include "mandoc.h" -#include "libmdoc.h" +#include "roff.h" +#include "mdoc.h" #include "libmandoc.h" +#include "roff_int.h" +#include "libmdoc.h" -const char *const __mdoc_macronames[MDOC_MAX] = { +const char *const __mdoc_macronames[MDOC_MAX + 1] = { + "text", "Ap", "Dd", "Dt", "Os", "Sh", "Ss", "Pp", "D1", "Dl", "Bd", "Ed", "Bl", @@ -43,11 +47,8 @@ const char *const __mdoc_macronames[MDOC_MAX] = { "Ic", "In", "Li", "Nd", "Nm", "Op", "Ot", "Pa", "Rv", "St", "Va", "Vt", - /* LINTED */ "Xr", "%A", "%B", "%D", - /* LINTED */ "%I", "%J", "%N", "%O", - /* LINTED */ "%P", "%R", "%T", "%V", "Ac", "Ao", "Aq", "At", "Bc", "Bf", "Bo", "Bq", @@ -64,502 +65,222 @@ const char *const __mdoc_macronames[MDOC_MAX] = { "Bk", "Ek", "Bt", "Hf", "Fr", "Ud", "Lb", "Lp", "Lk", "Mt", "Brq", "Bro", - /* LINTED */ "Brc", "%C", "Es", "En", - /* LINTED */ "Dx", "%Q", "br", "sp", - /* LINTED */ - "%U" - }; + "%U", "Ta", "ll", +}; -const char *const __mdoc_argnames[MDOC_ARG_MAX] = { +const char *const __mdoc_argnames[MDOC_ARG_MAX] = { "split", "nosplit", "ragged", - "unfilled", "literal", "file", - "offset", "bullet", "dash", - "hyphen", "item", "enum", - "tag", "diag", "hang", - "ohang", "inset", "column", - "width", "compact", "std", + "unfilled", "literal", "file", + "offset", "bullet", "dash", + "hyphen", "item", "enum", + "tag", "diag", "hang", + "ohang", "inset", "column", + "width", "compact", "std", "filled", "words", "emphasis", "symbolic", "nested", "centered" }; -const char * const *mdoc_macronames = __mdoc_macronames; +const char * const *mdoc_macronames = __mdoc_macronames + 1; const char * const *mdoc_argnames = __mdoc_argnames; -static void mdoc_node_free(struct mdoc_node *); -static void mdoc_node_unlink(struct mdoc *, - struct mdoc_node *); -static void mdoc_free1(struct mdoc *); -static void mdoc_alloc1(struct mdoc *); -static struct mdoc_node *node_alloc(struct mdoc *, int, int, - enum mdoct, enum mdoc_type); -static int node_append(struct mdoc *, - struct mdoc_node *); -static int mdoc_ptext(struct mdoc *, int, char *, int); -static int mdoc_pmacro(struct mdoc *, int, char *, int); -static int macrowarn(struct mdoc *, int, - const char *, int); +static int mdoc_ptext(struct roff_man *, int, char *, int); +static int mdoc_pmacro(struct roff_man *, int, char *, int); -const struct mdoc_node * -mdoc_node(const struct mdoc *m) +void +mdoc_endparse(struct roff_man *mdoc) { - return(MDOC_HALT & m->flags ? NULL : m->first); + mdoc_macroend(mdoc); } - -const struct mdoc_meta * -mdoc_meta(const struct mdoc *m) -{ - - return(MDOC_HALT & m->flags ? NULL : &m->meta); -} - - /* - * Frees volatile resources (parse tree, meta-data, fields). + * Main parse routine. Parses a single line -- really just hands off to + * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()). */ -static void -mdoc_free1(struct mdoc *mdoc) +int +mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs) { - if (mdoc->first) - mdoc_node_delete(mdoc, mdoc->first); - if (mdoc->meta.title) - free(mdoc->meta.title); - if (mdoc->meta.os) - free(mdoc->meta.os); - if (mdoc->meta.name) - free(mdoc->meta.name); - if (mdoc->meta.arch) - free(mdoc->meta.arch); - if (mdoc->meta.vol) - free(mdoc->meta.vol); - if (mdoc->meta.msec) - free(mdoc->meta.msec); -} + if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line) + mdoc->flags |= MDOC_NEWLINE; + /* + * Let the roff nS register switch SYNOPSIS mode early, + * such that the parser knows at all times + * whether this mode is on or off. + * Note that this mode is also switched by the Sh macro. + */ + if (roff_getreg(mdoc->roff, "nS")) + mdoc->flags |= MDOC_SYNOPSIS; + else + mdoc->flags &= ~MDOC_SYNOPSIS; -/* - * Allocate all volatile resources (parse tree, meta-data, fields). - */ -static void -mdoc_alloc1(struct mdoc *mdoc) -{ - - memset(&mdoc->meta, 0, sizeof(struct mdoc_meta)); - mdoc->flags = 0; - mdoc->lastnamed = mdoc->lastsec = SEC_NONE; - mdoc->last = mandoc_calloc(1, sizeof(struct mdoc_node)); - mdoc->first = mdoc->last; - mdoc->last->type = MDOC_ROOT; - mdoc->next = MDOC_NEXT_CHILD; + return(roff_getcontrol(mdoc->roff, buf, &offs) ? + mdoc_pmacro(mdoc, ln, buf, offs) : + mdoc_ptext(mdoc, ln, buf, offs)); } - -/* - * Free up volatile resources (see mdoc_free1()) then re-initialises the - * data with mdoc_alloc1(). After invocation, parse data has been reset - * and the parser is ready for re-invocation on a new tree; however, - * cross-parse non-volatile data is kept intact. - */ void -mdoc_reset(struct mdoc *mdoc) +mdoc_macro(MACRO_PROT_ARGS) { + assert(tok > TOKEN_NONE && tok < MDOC_MAX); - mdoc_free1(mdoc); - mdoc_alloc1(mdoc); + if (mdoc->flags & MDOC_PBODY) { + if (tok == MDOC_Dt) { + mandoc_vmsg(MANDOCERR_DT_LATE, + mdoc->parse, line, ppos, + "Dt %s", buf + *pos); + return; + } + } else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) { + if (mdoc->meta.title == NULL) { + mandoc_vmsg(MANDOCERR_DT_NOTITLE, + mdoc->parse, line, ppos, "%s %s", + mdoc_macronames[tok], buf + *pos); + mdoc->meta.title = mandoc_strdup("UNTITLED"); + } + if (NULL == mdoc->meta.vol) + mdoc->meta.vol = mandoc_strdup("LOCAL"); + mdoc->flags |= MDOC_PBODY; + } + (*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf); } - -/* - * Completely free up all volatile and non-volatile parse resources. - * After invocation, the pointer is no longer usable. - */ void -mdoc_free(struct mdoc *mdoc) +mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok) { + struct roff_node *p; - mdoc_free1(mdoc); - free(mdoc); + p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok); + roff_node_append(mdoc, p); + mdoc->next = ROFF_NEXT_CHILD; } - -/* - * Allocate volatile and non-volatile parse resources. - */ -struct mdoc * -mdoc_alloc(void *data, int pflags, mandocmsg msg) +struct roff_node * +mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok, + struct roff_node *body, enum mdoc_endbody end) { - struct mdoc *p; + struct roff_node *p; - p = mandoc_calloc(1, sizeof(struct mdoc)); - - p->msg = msg; - p->data = data; - p->pflags = pflags; - - mdoc_hash_init(); - mdoc_alloc1(p); + body->flags |= MDOC_ENDED; + body->parent->flags |= MDOC_ENDED; + p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok); + p->body = body; + p->norm = body->norm; + p->end = end; + roff_node_append(mdoc, p); + mdoc->next = ROFF_NEXT_SIBLING; return(p); } - -/* - * Climb back up the parse tree, validating open scopes. Mostly calls - * through to macro_end() in macro.c. - */ -int -mdoc_endparse(struct mdoc *m) +struct roff_node * +mdoc_block_alloc(struct roff_man *mdoc, int line, int pos, + int tok, struct mdoc_arg *args) { + struct roff_node *p; - if (MDOC_HALT & m->flags) - return(0); - else if (mdoc_macroend(m)) - return(1); - m->flags |= MDOC_HALT; - return(0); -} + p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok); + p->args = args; + if (p->args) + (args->refcnt)++; - -/* - * Main parse routine. Parses a single line -- really just hands off to - * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()). - */ -int -mdoc_parseln(struct mdoc *m, int ln, char *buf, int offs) -{ - - if (MDOC_HALT & m->flags) - return(0); - - m->flags |= MDOC_NEWLINE; - return(('.' == buf[offs] || '\'' == buf[offs]) ? - mdoc_pmacro(m, ln, buf, offs) : - mdoc_ptext(m, ln, buf, offs)); -} - - -int -mdoc_vmsg(struct mdoc *mdoc, enum mandocerr t, - int ln, int pos, const char *fmt, ...) -{ - char buf[256]; - va_list ap; - - va_start(ap, fmt); - vsnprintf(buf, sizeof(buf) - 1, fmt, ap); - va_end(ap); - - return((*mdoc->msg)(t, mdoc->data, ln, pos, buf)); -} - - -int -mdoc_macro(struct mdoc *m, enum mdoct tok, - int ln, int pp, int *pos, char *buf) -{ - assert(tok < MDOC_MAX); - - /* If we're in the body, deny prologue calls. */ - - if (MDOC_PROLOGUE & mdoc_macros[tok].flags && - MDOC_PBODY & m->flags) - return(mdoc_pmsg(m, ln, pp, MANDOCERR_BADBODY)); - - /* If we're in the prologue, deny "body" macros. */ - - if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) && - ! (MDOC_PBODY & m->flags)) { - if ( ! mdoc_pmsg(m, ln, pp, MANDOCERR_BADPROLOG)) - return(0); - if (NULL == m->meta.title) - m->meta.title = mandoc_strdup("unknown"); - if (NULL == m->meta.vol) - m->meta.vol = mandoc_strdup("local"); - if (NULL == m->meta.os) - m->meta.os = mandoc_strdup("local"); - if (0 == m->meta.date) - m->meta.date = time(NULL); - m->flags |= MDOC_PBODY; - } - - return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf)); -} - - -static int -node_append(struct mdoc *mdoc, struct mdoc_node *p) -{ - - assert(mdoc->last); - assert(mdoc->first); - assert(MDOC_ROOT != p->type); - - switch (mdoc->next) { - case (MDOC_NEXT_SIBLING): - mdoc->last->next = p; - p->prev = mdoc->last; - p->parent = mdoc->last->parent; + switch (tok) { + case MDOC_Bd: + /* FALLTHROUGH */ + case MDOC_Bf: + /* FALLTHROUGH */ + case MDOC_Bl: + /* FALLTHROUGH */ + case MDOC_En: + /* FALLTHROUGH */ + case MDOC_Rs: + p->norm = mandoc_calloc(1, sizeof(union mdoc_data)); break; - case (MDOC_NEXT_CHILD): - mdoc->last->child = p; - p->parent = mdoc->last; - break; default: - abort(); - /* NOTREACHED */ - } - - p->parent->nchild++; - - if ( ! mdoc_valid_pre(mdoc, p)) - return(0); - if ( ! mdoc_action_pre(mdoc, p)) - return(0); - - switch (p->type) { - case (MDOC_HEAD): - assert(MDOC_BLOCK == p->parent->type); - p->parent->head = p; break; - case (MDOC_TAIL): - assert(MDOC_BLOCK == p->parent->type); - p->parent->tail = p; - break; - case (MDOC_BODY): - assert(MDOC_BLOCK == p->parent->type); - p->parent->body = p; - break; - default: - break; } - - mdoc->last = p; - - switch (p->type) { - case (MDOC_TEXT): - if ( ! mdoc_valid_post(mdoc)) - return(0); - if ( ! mdoc_action_post(mdoc)) - return(0); - break; - default: - break; - } - - return(1); -} - - -static struct mdoc_node * -node_alloc(struct mdoc *m, int line, int pos, - enum mdoct tok, enum mdoc_type type) -{ - struct mdoc_node *p; - - p = mandoc_calloc(1, sizeof(struct mdoc_node)); - p->sec = m->lastsec; - p->line = line; - p->pos = pos; - p->tok = tok; - p->type = type; - if (MDOC_NEWLINE & m->flags) - p->flags |= MDOC_LINE; - m->flags &= ~MDOC_NEWLINE; + roff_node_append(mdoc, p); + mdoc->next = ROFF_NEXT_CHILD; return(p); } - -int -mdoc_tail_alloc(struct mdoc *m, int line, int pos, enum mdoct tok) +void +mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos, + int tok, struct mdoc_arg *args) { - struct mdoc_node *p; + struct roff_node *p; - p = node_alloc(m, line, pos, tok, MDOC_TAIL); - if ( ! node_append(m, p)) - return(0); - m->next = MDOC_NEXT_CHILD; - return(1); -} - - -int -mdoc_head_alloc(struct mdoc *m, int line, int pos, enum mdoct tok) -{ - struct mdoc_node *p; - - assert(m->first); - assert(m->last); - - p = node_alloc(m, line, pos, tok, MDOC_HEAD); - if ( ! node_append(m, p)) - return(0); - m->next = MDOC_NEXT_CHILD; - return(1); -} - - -int -mdoc_body_alloc(struct mdoc *m, int line, int pos, enum mdoct tok) -{ - struct mdoc_node *p; - - p = node_alloc(m, line, pos, tok, MDOC_BODY); - if ( ! node_append(m, p)) - return(0); - m->next = MDOC_NEXT_CHILD; - return(1); -} - - -int -mdoc_block_alloc(struct mdoc *m, int line, int pos, - enum mdoct tok, struct mdoc_arg *args) -{ - struct mdoc_node *p; - - p = node_alloc(m, line, pos, tok, MDOC_BLOCK); + p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok); p->args = args; if (p->args) (args->refcnt)++; - if ( ! node_append(m, p)) - return(0); - m->next = MDOC_NEXT_CHILD; - return(1); -} - -int -mdoc_elem_alloc(struct mdoc *m, int line, int pos, - enum mdoct tok, struct mdoc_arg *args) -{ - struct mdoc_node *p; - - p = node_alloc(m, line, pos, tok, MDOC_ELEM); - p->args = args; - if (p->args) - (args->refcnt)++; - if ( ! node_append(m, p)) - return(0); - m->next = MDOC_NEXT_CHILD; - return(1); -} - - -int -mdoc_word_alloc(struct mdoc *m, int line, int pos, const char *p) -{ - struct mdoc_node *n; - size_t sv, len; - - len = strlen(p); - - n = node_alloc(m, line, pos, MDOC_MAX, MDOC_TEXT); - n->string = mandoc_malloc(len + 1); - sv = strlcpy(n->string, p, len + 1); - - /* Prohibit truncation. */ - assert(sv < len + 1); - - if ( ! node_append(m, n)) - return(0); - - m->next = MDOC_NEXT_SIBLING; - return(1); -} - - -void -mdoc_node_free(struct mdoc_node *p) -{ - - if (p->string) - free(p->string); - if (p->args) - mdoc_argv_free(p->args); - free(p); -} - - -static void -mdoc_node_unlink(struct mdoc *m, struct mdoc_node *n) -{ - - /* Adjust siblings. */ - - if (n->prev) - n->prev->next = n->next; - if (n->next) - n->next->prev = n->prev; - - /* Adjust parent. */ - - if (n->parent) { - n->parent->nchild--; - if (n->parent->child == n) - n->parent->child = n->prev ? n->prev : n->next; + switch (tok) { + case MDOC_An: + p->norm = mandoc_calloc(1, sizeof(union mdoc_data)); + break; + default: + break; } - - /* Adjust parse point, if applicable. */ - - if (m && m->last == n) { - if (n->prev) { - m->last = n->prev; - m->next = MDOC_NEXT_SIBLING; - } else { - m->last = n->parent; - m->next = MDOC_NEXT_CHILD; - } - } - - if (m && m->first == n) - m->first = NULL; + roff_node_append(mdoc, p); + mdoc->next = ROFF_NEXT_CHILD; } - void -mdoc_node_delete(struct mdoc *m, struct mdoc_node *p) +mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p) { - while (p->child) { - assert(p->nchild); - mdoc_node_delete(m, p->child); - } - assert(0 == p->nchild); - - mdoc_node_unlink(m, p); - mdoc_node_free(p); + roff_node_unlink(mdoc, p); + roff_node_append(mdoc, p); } - /* * Parse free-form text, that is, a line that does not begin with the * control character. */ static int -mdoc_ptext(struct mdoc *m, int line, char *buf, int offs) +mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs) { - char *c, *ws, *end; + struct roff_node *n; + char *c, *ws, *end; - /* Ignore bogus comments. */ + assert(mdoc->last); + n = mdoc->last; - if ('\\' == buf[offs] && - '.' == buf[offs + 1] && - '"' == buf[offs + 2]) - return(mdoc_pmsg(m, line, offs, MANDOCERR_BADCOMMENT)); + /* + * Divert directly to list processing if we're encountering a + * columnar ROFFT_BLOCK with or without a prior ROFFT_BLOCK entry + * (a ROFFT_BODY means it's already open, in which case we should + * process within its context in the normal way). + */ - /* No text before an initial macro. */ + if (n->tok == MDOC_Bl && n->type == ROFFT_BODY && + n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) { + /* `Bl' is open without any children. */ + mdoc->flags |= MDOC_FREECOL; + mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf); + return(1); + } - if (SEC_NONE == m->lastnamed) - return(mdoc_pmsg(m, line, offs, MANDOCERR_NOTEXT)); + if (n->tok == MDOC_It && n->type == ROFFT_BLOCK && + NULL != n->parent && + MDOC_Bl == n->parent->tok && + LIST_column == n->parent->norm->Bl.type) { + /* `Bl' has block-level `It' children. */ + mdoc->flags |= MDOC_FREECOL; + mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf); + return(1); + } /* * Search for the beginning of unescaped trailing whitespace (ws) * and for the first character not to be output (end). */ + + /* FIXME: replace with strcspn(). */ ws = NULL; for (c = end = buf + offs; *c; c++) { switch (*c) { @@ -579,7 +300,7 @@ mdoc_ptext(struct mdoc *m, int line, char *buf, int of * Strip trailing tabs in literal context only; * outside, they affect the next line. */ - if (MDOC_LITERAL & m->flags) + if (MDOC_LITERAL & mdoc->flags) continue; break; case '\\': @@ -596,29 +317,27 @@ mdoc_ptext(struct mdoc *m, int line, char *buf, int of *end = '\0'; if (ws) - if ( ! mdoc_pmsg(m, line, (int)(ws-buf), MANDOCERR_EOLNSPACE)) - return(0); + mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, + line, (int)(ws-buf), NULL); - if ('\0' == buf[offs] && ! (MDOC_LITERAL & m->flags)) { - if ( ! mdoc_pmsg(m, line, (int)(c-buf), MANDOCERR_NOBLANKLN)) - return(0); + if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) { + mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse, + line, (int)(c - buf), NULL); /* - * Insert a `Pp' in the case of a blank line. Technically, + * Insert a `sp' in the case of a blank line. Technically, * blank lines aren't allowed, but enough manuals assume this * behaviour that we want to work around it. */ - if ( ! mdoc_elem_alloc(m, line, offs, MDOC_Pp, NULL)) - return(0); - - m->next = MDOC_NEXT_SIBLING; + mdoc_elem_alloc(mdoc, line, offs, MDOC_sp, NULL); + mdoc->next = ROFF_NEXT_SIBLING; + mdoc_valid_post(mdoc); return(1); } - if ( ! mdoc_word_alloc(m, line, offs, buf+offs)) - return(0); + roff_word_alloc(mdoc, line, offs, buf+offs); - if (MDOC_LITERAL & m->flags) + if (mdoc->flags & MDOC_LITERAL) return(1); /* @@ -630,116 +349,207 @@ mdoc_ptext(struct mdoc *m, int line, char *buf, int of assert(buf < end); if (mandoc_eos(buf+offs, (size_t)(end-buf-offs))) - m->last->flags |= MDOC_EOS; - + mdoc->last->flags |= MDOC_EOS; return(1); } - -static int -macrowarn(struct mdoc *m, int ln, const char *buf, int offs) -{ - int rc; - - rc = mdoc_vmsg(m, MANDOCERR_MACRO, ln, offs, - "unknown macro: %s%s", - buf, strlen(buf) > 3 ? "..." : ""); - - /* FIXME: logic should be in driver. */ - return(MDOC_IGN_MACRO & m->pflags ? rc : 0); -} - - /* * Parse a macro line, that is, a line beginning with the control * character. */ -int -mdoc_pmacro(struct mdoc *m, int ln, char *buf, int offs) +static int +mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs) { - enum mdoct tok; - int i, j, sv; - char mac[5]; + struct roff_node *n; + const char *cp; + int tok; + int i, sv; + char mac[5]; - /* Empty lines are ignored. */ + sv = offs; - offs++; + /* + * Copy the first word into a nil-terminated buffer. + * Stop when a space, tab, escape, or eoln is encountered. + */ - if ('\0' == buf[offs]) - return(1); + i = 0; + while (i < 4 && strchr(" \t\\", buf[offs]) == NULL) + mac[i++] = buf[offs++]; - i = offs; + mac[i] = '\0'; - /* Accept whitespace after the initial control char. */ + tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : TOKEN_NONE; - if (' ' == buf[i]) { - i++; - while (buf[i] && ' ' == buf[i]) - i++; - if ('\0' == buf[i]) - return(1); + if (tok == TOKEN_NONE) { + mandoc_msg(MANDOCERR_MACRO, mdoc->parse, + ln, sv, buf + sv - 1); + return(1); } - sv = i; + /* Skip a leading escape sequence or tab. */ - /* Copy the first word into a nil-terminated buffer. */ + switch (buf[offs]) { + case '\\': + cp = buf + offs + 1; + mandoc_escape(&cp, NULL, NULL); + offs = cp - buf; + break; + case '\t': + offs++; + break; + default: + break; + } - for (j = 0; j < 4; j++, i++) { - if ('\0' == (mac[j] = buf[i])) - break; - else if (' ' == buf[i]) - break; + /* Jump to the next non-whitespace word. */ - /* Check for invalid characters. */ + while (buf[offs] && ' ' == buf[offs]) + offs++; - if (isgraph((u_char)buf[i])) - continue; - if ( ! mdoc_pmsg(m, ln, i, MANDOCERR_BADCHAR)) - return(0); - i--; - } + /* + * Trailing whitespace. Note that tabs are allowed to be passed + * into the parser as "text", so we only warn about spaces here. + */ - mac[j] = '\0'; + if ('\0' == buf[offs] && ' ' == buf[offs - 1]) + mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse, + ln, offs - 1, NULL); - if (j == 4 || j < 2) { - if ( ! macrowarn(m, ln, mac, sv)) - goto err; + /* + * If an initial macro or a list invocation, divert directly + * into macro processing. + */ + + if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) { + mdoc_macro(mdoc, tok, ln, sv, &offs, buf); return(1); - } - - if (MDOC_MAX == (tok = mdoc_hash_find(mac))) { - if ( ! macrowarn(m, ln, mac, sv)) - goto err; - return(1); } - /* The macro is sane. Jump to the next word. */ + n = mdoc->last; + assert(mdoc->last); - while (buf[i] && ' ' == buf[i]) - i++; - - /* - * Trailing whitespace. Note that tabs are allowed to be passed - * into the parser as "text", so we only warn about spaces here. + /* + * If the first macro of a `Bl -column', open an `It' block + * context around the parsed macro. */ - if ('\0' == buf[i] && ' ' == buf[i - 1]) - if ( ! mdoc_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE)) - goto err; + if (n->tok == MDOC_Bl && n->type == ROFFT_BODY && + n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) { + mdoc->flags |= MDOC_FREECOL; + mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf); + return(1); + } - /* - * Begin recursive parse sequence. Since we're at the start of - * the line, we don't need to do callable/parseable checks. + /* + * If we're following a block-level `It' within a `Bl -column' + * context (perhaps opened in the above block or in ptext()), + * then open an `It' block context around the parsed macro. */ - if ( ! mdoc_macro(m, tok, ln, sv, &i, buf)) - goto err; + if (n->tok == MDOC_It && n->type == ROFFT_BLOCK && + NULL != n->parent && + MDOC_Bl == n->parent->tok && + LIST_column == n->parent->norm->Bl.type) { + mdoc->flags |= MDOC_FREECOL; + mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf); + return(1); + } + + /* Normal processing of a macro. */ + + mdoc_macro(mdoc, tok, ln, sv, &offs, buf); + + /* In quick mode (for mandocdb), abort after the NAME section. */ + + if (mdoc->quick && MDOC_Sh == tok && + SEC_NAME != mdoc->last->sec) + return(2); + return(1); +} -err: /* Error out. */ +enum mdelim +mdoc_isdelim(const char *p) +{ - m->flags |= MDOC_HALT; - return(0); + if ('\0' == p[0]) + return(DELIM_NONE); + + if ('\0' == p[1]) + switch (p[0]) { + case '(': + /* FALLTHROUGH */ + case '[': + return(DELIM_OPEN); + case '|': + return(DELIM_MIDDLE); + case '.': + /* FALLTHROUGH */ + case ',': + /* FALLTHROUGH */ + case ';': + /* FALLTHROUGH */ + case ':': + /* FALLTHROUGH */ + case '?': + /* FALLTHROUGH */ + case '!': + /* FALLTHROUGH */ + case ')': + /* FALLTHROUGH */ + case ']': + return(DELIM_CLOSE); + default: + return(DELIM_NONE); + } + + if ('\\' != p[0]) + return(DELIM_NONE); + + if (0 == strcmp(p + 1, ".")) + return(DELIM_CLOSE); + if (0 == strcmp(p + 1, "fR|\\fP")) + return(DELIM_MIDDLE); + + return(DELIM_NONE); } +void +mdoc_deroff(char **dest, const struct roff_node *n) +{ + char *cp; + size_t sz; + if (n->type != ROFFT_TEXT) { + for (n = n->child; n; n = n->next) + mdoc_deroff(dest, n); + return; + } + + /* Skip leading whitespace. */ + + for (cp = n->string; '\0' != *cp; cp++) + if (0 == isspace((unsigned char)*cp)) + break; + + /* Skip trailing whitespace. */ + + for (sz = strlen(cp); sz; sz--) + if (0 == isspace((unsigned char)cp[sz-1])) + break; + + /* Skip empty strings. */ + + if (0 == sz) + return; + + if (NULL == *dest) { + *dest = mandoc_strndup(cp, sz); + return; + } + + mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp); + free(*dest); + *dest = cp; +}