=================================================================== RCS file: /cvs/mandoc/man_macro.c,v retrieving revision 1.101 retrieving revision 1.119 diff -u -p -r1.101 -r1.119 --- mandoc/man_macro.c 2015/04/02 21:36:50 1.101 +++ mandoc/man_macro.c 2017/05/05 13:17:54 1.119 @@ -1,7 +1,7 @@ -/* $Id: man_macro.c,v 1.101 2015/04/02 21:36:50 schwarze Exp $ */ +/* $Id: man_macro.c,v 1.119 2017/05/05 13:17:54 schwarze Exp $ */ /* * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons - * Copyright (c) 2012, 2013, 2014, 2015 Ingo Schwarze + * Copyright (c) 2012-2015, 2017 Ingo Schwarze * Copyright (c) 2013 Franco Fichtner * * Permission to use, copy, modify, and distribute this software for any @@ -29,30 +29,18 @@ #include "roff.h" #include "man.h" #include "libmandoc.h" +#include "roff_int.h" #include "libman.h" -enum rew { - REW_REWIND, - REW_NOHALT, - REW_HALT -}; - static void blk_close(MACRO_PROT_ARGS); static void blk_exp(MACRO_PROT_ARGS); static void blk_imp(MACRO_PROT_ARGS); static void in_line_eoln(MACRO_PROT_ARGS); -static int man_args(struct man *, int, +static int man_args(struct roff_man *, int, int *, char *, char **); +static void rew_scope(struct roff_man *, enum roff_tok); -static void rew_scope(enum roff_type, - struct man *, enum mant); -static enum rew rew_dohalt(enum mant, enum roff_type, - const struct man_node *); -static enum rew rew_block(enum mant, enum roff_type, - const struct man_node *); - -const struct man_macro __man_macros[MAN_MAX] = { - { in_line_eoln, MAN_NSCOPED }, /* br */ +const struct man_macro __man_macros[MAN_MAX - MAN_TH] = { { in_line_eoln, MAN_BSCOPE }, /* TH */ { blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SH */ { blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SS */ @@ -74,8 +62,8 @@ const struct man_macro __man_macros[MAN_MAX] = { { in_line_eoln, 0 }, /* IR */ { in_line_eoln, 0 }, /* RI */ { in_line_eoln, MAN_NSCOPED }, /* sp */ - { in_line_eoln, MAN_BSCOPE }, /* nf */ - { in_line_eoln, MAN_BSCOPE }, /* fi */ + { in_line_eoln, MAN_NSCOPED }, /* nf */ + { in_line_eoln, MAN_NSCOPED }, /* fi */ { blk_close, MAN_BSCOPE }, /* RE */ { blk_exp, MAN_BSCOPE }, /* RS */ { in_line_eoln, 0 }, /* DT */ @@ -83,22 +71,19 @@ const struct man_macro __man_macros[MAN_MAX] = { { in_line_eoln, MAN_NSCOPED }, /* PD */ { in_line_eoln, 0 }, /* AT */ { in_line_eoln, 0 }, /* in */ - { in_line_eoln, 0 }, /* ft */ { in_line_eoln, 0 }, /* OP */ { in_line_eoln, MAN_BSCOPE }, /* EX */ { in_line_eoln, MAN_BSCOPE }, /* EE */ { blk_exp, MAN_BSCOPE }, /* UR */ { blk_close, MAN_BSCOPE }, /* UE */ - { in_line_eoln, 0 }, /* ll */ }; +const struct man_macro *const man_macros = __man_macros - MAN_TH; -const struct man_macro * const man_macros = __man_macros; - void -man_unscope(struct man *man, const struct man_node *to) +man_unscope(struct roff_man *man, const struct roff_node *to) { - struct man_node *n; + struct roff_node *n; to = to->parent; n = man->last; @@ -106,13 +91,12 @@ man_unscope(struct man *man, const struct man_node *to /* Reached the end of the document? */ - if (to == NULL && ! (n->flags & MAN_VALID)) { + if (to == NULL && ! (n->flags & NODE_VALID)) { if (man->flags & (MAN_BLINE | MAN_ELINE) && man_macros[n->tok].flags & MAN_SCOPED) { mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, n->line, n->pos, - "EOF breaks %s", - man_macronames[n->tok]); + "EOF breaks %s", roff_name[n->tok]); if (man->flags & MAN_ELINE) man->flags &= ~MAN_ELINE; else { @@ -122,14 +106,14 @@ man_unscope(struct man *man, const struct man_node *to } man->last = n; n = n->parent; - man_node_delete(man, man->last); + roff_node_delete(man, man->last); continue; } if (n->type == ROFFT_BLOCK && man_macros[n->tok].fp == blk_exp) mandoc_msg(MANDOCERR_BLK_NOEND, man->parse, n->line, n->pos, - man_macronames[n->tok]); + roff_name[n->tok]); } /* @@ -141,7 +125,7 @@ man_unscope(struct man *man, const struct man_node *to man->last = n; n = n->parent; - man_valid_post(man); + man->last->flags |= NODE_VALID; } /* @@ -152,122 +136,49 @@ man_unscope(struct man *man, const struct man_node *to */ man->next = (man->last == to) ? - MAN_NEXT_CHILD : MAN_NEXT_SIBLING; + ROFF_NEXT_CHILD : ROFF_NEXT_SIBLING; } -static enum rew -rew_block(enum mant ntok, enum roff_type type, const struct man_node *n) -{ - - if (type == ROFFT_BLOCK && n->parent->tok == ntok && - n->parent->type == ROFFT_BODY) - return(REW_REWIND); - return(ntok == n->tok ? REW_HALT : REW_NOHALT); -} - /* - * There are three scope levels: scoped to the root (all), scoped to the - * section (all less sections), and scoped to subsections (all less - * sections and subsections). - */ -static enum rew -rew_dohalt(enum mant tok, enum roff_type type, const struct man_node *n) -{ - enum rew c; - - /* We cannot progress beyond the root ever. */ - if (n->type == ROFFT_ROOT) - return(REW_HALT); - - assert(n->parent); - - /* Normal nodes shouldn't go to the level of the root. */ - if (n->parent->type == ROFFT_ROOT) - return(REW_REWIND); - - /* Already-validated nodes should be closed out. */ - if (MAN_VALID & n->flags) - return(REW_NOHALT); - - /* First: rewind to ourselves. */ - if (type == n->type && tok == n->tok) { - if (man_macros[n->tok].fp == blk_exp) - return(REW_HALT); - else - return(REW_REWIND); - } - - /* - * Next follow the implicit scope-smashings as defined by man.7: - * section, sub-section, etc. - */ - - switch (tok) { - case MAN_SH: - break; - case MAN_SS: - /* Rewind to a section, if a block. */ - if (REW_NOHALT != (c = rew_block(MAN_SH, type, n))) - return(c); - break; - case MAN_RS: - /* Preserve empty paragraphs before RS. */ - if (0 == n->nchild && (MAN_P == n->tok || - MAN_PP == n->tok || MAN_LP == n->tok)) - return(REW_HALT); - /* Rewind to a subsection, if a block. */ - if (REW_NOHALT != (c = rew_block(MAN_SS, type, n))) - return(c); - /* Rewind to a section, if a block. */ - if (REW_NOHALT != (c = rew_block(MAN_SH, type, n))) - return(c); - break; - default: - /* Rewind to an offsetter, if a block. */ - if (REW_NOHALT != (c = rew_block(MAN_RS, type, n))) - return(c); - /* Rewind to a subsection, if a block. */ - if (REW_NOHALT != (c = rew_block(MAN_SS, type, n))) - return(c); - /* Rewind to a section, if a block. */ - if (REW_NOHALT != (c = rew_block(MAN_SH, type, n))) - return(c); - break; - } - - return(REW_NOHALT); -} - -/* * Rewinding entails ascending the parse tree until a coherent point, * for example, the `SH' macro will close out any intervening `SS' * scopes. When a scope is closed, it must be validated and actioned. */ static void -rew_scope(enum roff_type type, struct man *man, enum mant tok) +rew_scope(struct roff_man *man, enum roff_tok tok) { - struct man_node *n; - enum rew c; + struct roff_node *n; - for (n = man->last; n; n = n->parent) { - /* - * Whether we should stop immediately (REW_HALT), stop - * and rewind until this point (REW_REWIND), or keep - * rewinding (REW_NOHALT). - */ - c = rew_dohalt(tok, type, n); - if (REW_HALT == c) - return; - if (REW_REWIND == c) - break; - } + /* Preserve empty paragraphs before RS. */ - /* - * Rewind until the current point. Warn if we're a roff - * instruction that's mowing over explicit scopes. - */ + n = man->last; + if (tok == MAN_RS && n->child == NULL && + (n->tok == MAN_P || n->tok == MAN_PP || n->tok == MAN_LP)) + return; - man_unscope(man, n); + for (;;) { + if (n->type == ROFFT_ROOT) + return; + if (n->flags & NODE_VALID) { + n = n->parent; + continue; + } + if (n->type != ROFFT_BLOCK) { + if (n->parent->type == ROFFT_ROOT) { + man_unscope(man, n); + return; + } else { + n = n->parent; + continue; + } + } + if (tok != MAN_SH && (n->tok == MAN_SH || + (tok != MAN_SS && (n->tok == MAN_SS || + man_macros[n->tok].fp == blk_exp)))) + return; + man_unscope(man, n); + n = man->last; + } } @@ -277,8 +188,8 @@ rew_scope(enum roff_type type, struct man *man, enum m void blk_close(MACRO_PROT_ARGS) { - enum mant ntok; - const struct man_node *nn; + enum roff_tok ntok; + const struct roff_node *nn; char *p; int nrew, target; @@ -309,7 +220,6 @@ blk_close(MACRO_PROT_ARGS) break; default: abort(); - /* NOTREACHED */ } for (nn = man->last->parent; nn; nn = nn->parent) @@ -318,8 +228,8 @@ blk_close(MACRO_PROT_ARGS) if (nn == NULL) { mandoc_msg(MANDOCERR_BLK_NOTOPEN, man->parse, - line, ppos, man_macronames[tok]); - rew_scope(ROFFT_BLOCK, man, MAN_PP); + line, ppos, roff_name[tok]); + rew_scope(man, MAN_PP); } else { line = man->last->line; ppos = man->last->pos; @@ -338,26 +248,24 @@ blk_close(MACRO_PROT_ARGS) void blk_exp(MACRO_PROT_ARGS) { - struct man_node *head; + struct roff_node *head; char *p; int la; - rew_scope(ROFFT_BLOCK, man, tok); - man_block_alloc(man, line, ppos, tok); - man_head_alloc(man, line, ppos, tok); - head = man->last; + rew_scope(man, tok); + roff_block_alloc(man, line, ppos, tok); + head = roff_head_alloc(man, line, ppos, tok); la = *pos; if (man_args(man, line, pos, buf, &p)) - man_word_alloc(man, line, la, p); + roff_word_alloc(man, line, la, p); if (buf[*pos] != '\0') - mandoc_vmsg(MANDOCERR_ARG_EXCESS, - man->parse, line, *pos, "%s ... %s", - man_macronames[tok], buf + *pos); + mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse, line, + *pos, "%s ... %s", roff_name[tok], buf + *pos); man_unscope(man, head); - man_body_alloc(man, line, ppos, tok); + roff_body_alloc(man, line, ppos, tok); } /* @@ -371,13 +279,13 @@ blk_imp(MACRO_PROT_ARGS) { int la; char *p; - struct man_node *n; + struct roff_node *n; - rew_scope(ROFFT_BODY, man, tok); - rew_scope(ROFFT_BLOCK, man, tok); - man_block_alloc(man, line, ppos, tok); - man_head_alloc(man, line, ppos, tok); - n = man->last; + rew_scope(man, tok); + n = roff_block_alloc(man, line, ppos, tok); + if (n->tok == MAN_SH || n->tok == MAN_SS) + man->flags &= ~MAN_LITERAL; + n = roff_head_alloc(man, line, ppos, tok); /* Add line arguments. */ @@ -385,7 +293,7 @@ blk_imp(MACRO_PROT_ARGS) la = *pos; if ( ! man_args(man, line, pos, buf, &p)) break; - man_word_alloc(man, line, la, p); + roff_word_alloc(man, line, la, p); } /* @@ -402,8 +310,8 @@ blk_imp(MACRO_PROT_ARGS) /* Close out the head and open the body. */ - rew_scope(ROFFT_HEAD, man, tok); - man_body_alloc(man, line, ppos, tok); + man_unscope(man, n); + roff_body_alloc(man, line, ppos, tok); } void @@ -411,24 +319,23 @@ in_line_eoln(MACRO_PROT_ARGS) { int la; char *p; - struct man_node *n; + struct roff_node *n; - man_elem_alloc(man, line, ppos, tok); + roff_elem_alloc(man, line, ppos, tok); n = man->last; for (;;) { - if (buf[*pos] != '\0' && (tok == MAN_br || - tok == MAN_fi || tok == MAN_nf)) { + if (buf[*pos] != '\0' && (tok == MAN_fi || tok == MAN_nf)) { mandoc_vmsg(MANDOCERR_ARG_SKIP, man->parse, line, *pos, "%s %s", - man_macronames[tok], buf + *pos); + roff_name[tok], buf + *pos); break; } if (buf[*pos] != '\0' && man->last != n && - (tok == MAN_PD || tok == MAN_ft || tok == MAN_sp)) { + (tok == MAN_PD || tok == MAN_sp)) { mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse, line, *pos, "%s ... %s", - man_macronames[tok], buf + *pos); + roff_name[tok], buf + *pos); break; } la = *pos; @@ -436,19 +343,19 @@ in_line_eoln(MACRO_PROT_ARGS) break; if (man_macros[tok].flags & MAN_JOIN && man->last->type == ROFFT_TEXT) - man_word_append(man, p); + roff_word_append(man, p); else - man_word_alloc(man, line, la, p); + roff_word_alloc(man, line, la, p); } /* - * Append MAN_EOS in case the last snipped argument + * Append NODE_EOS in case the last snipped argument * ends with a dot, e.g. `.IR syslog (3).' */ if (n != man->last && mandoc_eos(man->last->string, strlen(man->last->string))) - man->last->flags |= MAN_EOS; + man->last->flags |= NODE_EOS; /* * If no arguments are specified and this is MAN_SCOPED (i.e., @@ -463,42 +370,27 @@ in_line_eoln(MACRO_PROT_ARGS) } assert(man->last->type != ROFFT_ROOT); - man->next = MAN_NEXT_SIBLING; + man->next = ROFF_NEXT_SIBLING; - /* - * Rewind our element scope. Note that when TH is pruned, we'll - * be back at the root, so make sure that we don't clobber as - * its sibling. - */ + /* Rewind our element scope. */ for ( ; man->last; man->last = man->last->parent) { + man_state(man, man->last); if (man->last == n) break; - if (man->last->type == ROFFT_ROOT) - break; - man_valid_post(man); } - - assert(man->last); - - /* - * Same here regarding whether we're back at the root. - */ - - if (man->last->type != ROFFT_ROOT) - man_valid_post(man); } - void -man_macroend(struct man *man) +man_endparse(struct roff_man *man) { man_unscope(man, man->first); + man->flags &= ~MAN_LITERAL; } static int -man_args(struct man *man, int line, int *pos, char *buf, char **v) +man_args(struct roff_man *man, int line, int *pos, char *buf, char **v) { char *start; @@ -507,8 +399,8 @@ man_args(struct man *man, int line, int *pos, char *bu assert(' ' != *start); if ('\0' == *start) - return(0); + return 0; *v = mandoc_getarg(man->parse, v, line, pos); - return(1); + return 1; }