diff options
Diffstat (limited to 'validate.c')
| -rw-r--r-- | validate.c | 1262 |
1 files changed, 210 insertions, 1052 deletions
@@ -17,1143 +17,301 @@ * PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> -#include <ctype.h> #include <stdlib.h> -#include <stdio.h> -#include <string.h> -#ifdef __linux__ -#include <time.h> -#endif #include "private.h" -/* FIXME: maxlineargs should be per LINE, no per TOKEN. */ -/* FIXME: prologue check should be in macro_call. */ -#define _CC(p) ((const char **)p) +typedef int (*v_sz)(struct mdoc *, int, int, int); +typedef int (*v_extra)(struct mdoc *, int, int, int, + const char *[], int, const struct mdoc_arg *); -static int scope_rewind_exp(struct mdoc *, int, int, int); -static int scope_rewind_imp(struct mdoc *, int, int); -static int append_text(struct mdoc *, int, - int, int, char *[]); -static int append_const(struct mdoc *, int, int, int, char *[]); -static int append_constarg(struct mdoc *, int, int, - int, const struct mdoc_arg *); -static int append_scoped(struct mdoc *, int, int, int, +static int assert_eq0(struct mdoc *, int, int, int); +static int assert_le1(struct mdoc *, int, int, int); +static int need_eq0(struct mdoc *, int, int, int); +static int need_eq1(struct mdoc *, int, int, int); +static int need_ge1(struct mdoc *, int, int, int); +static int need_le2(struct mdoc *, int, int, int); +static int want_eq0(struct mdoc *, int, int, int); +static int want_ge1(struct mdoc *, int, int, int); +static int v_Sh(struct mdoc *, int, int, int, + const char *[], int, const struct mdoc_arg *); +static int v_Bd(struct mdoc *, int, int, int, + const char *[], int, const struct mdoc_arg *); +static int v_At(struct mdoc *, int, int, int, const char *[], int, const struct mdoc_arg *); -static int append_delims(struct mdoc *, int, int *, char *); + +struct valids { + v_sz sz; + v_extra extra; +}; + + +const struct valids mdoc_valids[MDOC_MAX] = { + { NULL, NULL }, /* \" */ + { NULL, NULL }, /* Dd */ + { NULL, NULL }, /* Dt */ + { NULL, NULL }, /* Os */ + { need_ge1, v_Sh }, /* Sh */ + { need_ge1, NULL }, /* Ss */ + { want_eq0, NULL }, /* Pp */ + { NULL, NULL }, /* D1 */ + { NULL, NULL }, /* Dl */ + { NULL, v_Bd }, /* Bd */ + { NULL, NULL }, /* Ed */ + { NULL, NULL }, /* Bl */ + { NULL, NULL }, /* El */ + { NULL, NULL }, /* It */ + { need_ge1, NULL }, /* Ad */ + { NULL, NULL }, /* An */ + { NULL, NULL }, /* Ar */ + { NULL, NULL }, /* Cd */ + { NULL, NULL }, /* Cm */ + { need_ge1, NULL }, /* Dv */ + { need_ge1, NULL }, /* Er */ + { need_ge1, NULL }, /* Ev */ + { NULL, NULL }, /* Ex */ + { need_ge1, NULL }, /* Fa */ + { NULL, NULL }, /* Fd */ + { NULL, NULL }, /* Fl */ + { NULL, NULL }, /* Fn */ + { want_ge1, NULL }, /* Ft */ + { need_ge1, NULL }, /* Ic */ + { NULL, NULL }, /* In */ + { want_ge1, NULL }, /* Li */ + { want_ge1, NULL }, /* Nd */ + { NULL, NULL }, /* Nm */ + { NULL, NULL }, /* Op */ + { NULL, NULL }, /* Ot */ + { want_ge1, NULL }, /* Pa */ + { NULL, NULL }, /* Rv */ + { NULL, NULL }, /* St */ + { need_ge1, NULL }, /* Va */ + { need_ge1, NULL }, /* Vt */ + { NULL, NULL }, /* Xr */ + { NULL, NULL }, /* %A */ + { NULL, NULL }, /* %B */ + { NULL, NULL }, /* %D */ + { NULL, NULL }, /* %I */ + { NULL, NULL }, /* %J */ + { NULL, NULL }, /* %N */ + { NULL, NULL }, /* %O */ + { NULL, NULL }, /* %P */ + { NULL, NULL }, /* %R */ + { NULL, NULL }, /* %T */ + { NULL, NULL }, /* %V */ + { NULL, NULL }, /* Ac */ + { NULL, NULL }, /* Ao */ + { NULL, NULL }, /* Aq */ + { need_le2, v_At }, /* At */ + { NULL, NULL }, /* Bc */ + { NULL, NULL }, /* Bf */ + { NULL, NULL }, /* Bo */ + { NULL, NULL }, /* Bq */ + { assert_le1, NULL }, /* Bsx */ + { assert_le1, NULL }, /* Bx */ + { NULL, NULL }, /* Db */ + { NULL, NULL }, /* Dc */ + { NULL, NULL }, /* Do */ + { NULL, NULL }, /* Dq */ + { NULL, NULL }, /* Ec */ + { NULL, NULL }, /* Ef */ + { need_ge1, NULL }, /* Em */ + { NULL, NULL }, /* Eo */ + { assert_le1, NULL }, /* Fx */ + { want_ge1, NULL }, /* Ms */ + { NULL, NULL }, /* No */ + { NULL, NULL }, /* Ns */ + { assert_le1, NULL }, /* Nx */ + { assert_le1, NULL }, /* Ox */ + { NULL, NULL }, /* Pc */ + { NULL, NULL }, /* Pf */ + { NULL, NULL }, /* Po */ + { NULL, NULL }, /* Pq */ + { NULL, NULL }, /* Qc */ + { NULL, NULL }, /* Ql */ + { NULL, NULL }, /* Qo */ + { NULL, NULL }, /* Qq */ + { NULL, NULL }, /* Re */ + { NULL, NULL }, /* Rs */ + { NULL, NULL }, /* Sc */ + { NULL, NULL }, /* So */ + { NULL, NULL }, /* Sq */ + { NULL, NULL }, /* Sm */ + { need_ge1, NULL }, /* Sx */ + { need_ge1, NULL }, /* Sy */ + { want_ge1, NULL }, /* Tn */ + { assert_eq0, NULL }, /* Ux */ + { NULL, NULL }, /* Xc */ + { NULL, NULL }, /* Xo */ + { NULL, NULL }, /* Fo */ + { NULL, NULL }, /* Fc */ + { NULL, NULL }, /* Oo */ + { NULL, NULL }, /* Oc */ + { NULL, NULL }, /* Bk */ + { NULL, NULL }, /* Ek */ + { need_eq0, NULL }, /* Bt */ + { need_eq1, NULL }, /* Hf */ + { NULL, NULL }, /* Fr */ + { need_eq0, NULL }, /* Ud */ +}; static int -append_delims(struct mdoc *mdoc, int tok, int *pos, char *buf) +need_le2(struct mdoc *mdoc, int tok, int pos, int sz) { - int c, lastarg; - char *p; - - if (0 == buf[*pos]) + if (sz > 2) return(1); - - mdoc_msg(mdoc, *pos, "`%s' flushing punctuation", - mdoc_macronames[tok]); - - for (;;) { - lastarg = *pos; - c = mdoc_args(mdoc, tok, pos, buf, 0, &p); - if (ARGS_ERROR == c) - return(0); - else if (ARGS_EOLN == c) - break; - assert(mdoc_isdelim(p)); - mdoc_word_alloc(mdoc, lastarg, p); - } - - return(1); + return(mdoc_err(mdoc, tok, pos, ERR_ARGS_LE2)); } static int -scope_rewind_imp(struct mdoc *mdoc, int ppos, int tok) +want_ge1(struct mdoc *mdoc, int tok, int pos, int sz) { - struct mdoc_node *n; - int t; - - n = mdoc->last ? mdoc->last->parent : NULL; - - /* LINTED */ - for ( ; n; n = n->parent) { - if (MDOC_BLOCK != n->type) - continue; - if (tok == (t = n->data.block.tok)) - break; - if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) - continue; - return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); - } - - if (n) { - mdoc->last = n; - mdoc_msg(mdoc, ppos, "scope: rewound implicit `%s'", - mdoc_macronames[tok]); + if (sz > 0) return(1); - } - - mdoc_msg(mdoc, ppos, "scope: new implicit `%s'", - mdoc_macronames[tok]); - return(1); + return(mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1)); } static int -scope_rewind_exp(struct mdoc *mdoc, int ppos, int tok, int dst) +want_eq0(struct mdoc *mdoc, int tok, int pos, int sz) { - struct mdoc_node *n; - - assert(mdoc->last); - - /* LINTED */ - for (n = mdoc->last->parent; n; n = n->parent) { - if (MDOC_BLOCK != n->type) - continue; - if (dst == n->data.block.tok) - break; - return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); - } - - if (NULL == (mdoc->last = n)) - return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NOCTX)); - - mdoc_msg(mdoc, ppos, "scope: rewound explicit `%s' to `%s'", - mdoc_macronames[tok], mdoc_macronames[dst]); - - return(1); + if (sz == 0) + return(1); + return(mdoc_warn(mdoc, tok, pos, WARN_ARGS_EQ0)); } static int -append_constarg(struct mdoc *mdoc, int tok, int pos, - int argc, const struct mdoc_arg *argv) +need_eq0(struct mdoc *mdoc, int tok, int pos, int sz) { - - switch (tok) { - default: - break; - } - - mdoc_elem_alloc(mdoc, pos, tok, argc, argv, 0, NULL); - return(1); + if (sz == 0) + return(1); + return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ0)); } -/* - * Append a node with implicit or explicit scoping ONLY. ALL macros - * with the implicit- or explicit-scope callback must be included here. - */ static int -append_scoped(struct mdoc *mdoc, int tok, int pos, - int sz, const char *args[], - int argc, const struct mdoc_arg *argv) +assert_le1(struct mdoc *mdoc, int tok, int pos, int sz) { - enum mdoc_sec sec; - struct mdoc_node *node; - - switch (tok) { - /* ======= ADD MORE MACRO CHECKS BELOW. ======= */ - - case (MDOC_Sh): - /* - * Check rules for section ordering. We can have - * "known" sections (like NAME and so on) and "custom" - * sections, which are unknown. If we have a known - * section, we should fall within the conventional - * section order. - */ - if (0 == sz) - return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); - - sec = mdoc_atosec((size_t)sz, _CC(args)); - if (SEC_CUSTOM != sec && sec < mdoc->sec_lastn) - if ( ! mdoc_warn(mdoc, tok, pos, WARN_SEC_OO)) - return(0); - - if (SEC_BODY == mdoc->sec_last && SEC_NAME != sec) - return(mdoc_err(mdoc, tok, pos, ERR_SEC_NAME)); - if (SEC_CUSTOM != sec) - mdoc->sec_lastn = sec; - mdoc->sec_last = sec; - break; - - case (MDOC_Ss): - if (0 != sz) - break; - return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); - - case (MDOC_Bd): - /* - * We can't be nested within any other block displays - * (or really any other kind of display, although Bd is - * the only multi-line one that will show up). - */ - assert(mdoc->last); - node = mdoc->last->parent; - /* LINTED */ - for ( ; node; node = node->parent) { - if (node->type != MDOC_BLOCK) - continue; - if (node->data.block.tok != MDOC_Bd) - continue; - break; - } - if (NULL == node) - break; - return(mdoc_err(mdoc, tok, pos, ERR_SCOPE_NONEST)); - - case (MDOC_Bl): - break; - /* ======= ADD MORE MACRO CHECKS ABOVE. ======= */ - default: - abort(); - /* NOTREACHED */ - } - - mdoc_block_alloc(mdoc, pos, tok, (size_t)argc, argv); - mdoc_head_alloc(mdoc, pos, tok, (size_t)sz, _CC(args)); - mdoc_body_alloc(mdoc, pos, tok); + assert(sz <= 1); return(1); } static int -append_const(struct mdoc *mdoc, int tok, - int pos, int sz, char *args[]) +assert_eq0(struct mdoc *mdoc, int tok, int pos, int sz) { - switch (tok) { - /* ======= ADD MORE MACRO CHECKS BELOW. ======= */ - - /* FIXME: this is the ugliest part of this page. */ - case (MDOC_At): - /* This needs special handling. */ - if (0 == sz) - break; - else if (sz > 2) - return(mdoc_err(mdoc, tok, pos, ERR_ARGS_LE2)); - - if (ATT_DEFAULT != mdoc_atoatt(args[0])) { - mdoc_elem_alloc(mdoc, pos, tok, 0, - NULL, 1, _CC(&args[0])); - } else { - mdoc_elem_alloc(mdoc, pos, tok, - 0, NULL, 0, NULL); - if (mdoc_isdelim(args[0])) - return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_NOPUNCT)); - mdoc_word_alloc(mdoc, pos, args[0]); - } - - if (1 == sz) - return(1); - if (mdoc_isdelim(args[1])) - return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_NOPUNCT)); - mdoc_word_alloc(mdoc, pos, args[1]); - return(1); - - case (MDOC_Nd): - if (sz > 0) - break; - if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1)) - return(0); - break; - - case (MDOC_Hf): - if (1 == sz) - break; - return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ1)); - - case (MDOC_Bx): - /* FALLTHROUGH */ - case (MDOC_Bsx): - /* FALLTHROUGH */ - case (MDOC_Os): - /* FALLTHROUGH */ - case (MDOC_Fx): - /* FALLTHROUGH */ - case (MDOC_Nx): - assert(sz <= 1); - break; - - case (MDOC_Ux): - assert(0 == sz); - break; - - case (MDOC_Bt): - /* FALLTHROUGH */ - case (MDOC_Ud): - if (0 == sz) - break; - return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ0)); - - /* ======= ADD MORE MACRO CHECKS ABOVE. ======= */ - default: - abort(); - /* NOTREACHED */ - } - - mdoc_elem_alloc(mdoc, pos, tok, 0, NULL, (size_t)sz, _CC(args)); + assert(sz == 0); return(1); } static int -append_text(struct mdoc *mdoc, int tok, - int pos, int sz, char *args[]) -{ - - switch (tok) { - /* ======= ADD MORE MACRO CHECKS BELOW. ======= */ - case (MDOC_Pp): - if (0 == sz) - break; - if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_EQ0)) - return(0); - break; - - case (MDOC_Ft): - /* FALLTHROUGH */ - case (MDOC_Li): - /* FALLTHROUGH */ - case (MDOC_Ms): - /* FALLTHROUGH */ - case (MDOC_Pa): - /* FALLTHROUGH */ - case (MDOC_Tn): - if (0 < sz) - break; - if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1)) - return(0); - break; - - case (MDOC_Ar): - /* FALLTHROUGH */ - case (MDOC_Cm): - /* FALLTHROUGH */ - case (MDOC_Fl): - /* These can have no arguments. */ - break; - - case (MDOC_Ad): - /* FALLTHROUGH */ - case (MDOC_Em): - /* FALLTHROUGH */ - case (MDOC_Er): - /* FALLTHROUGH */ - case (MDOC_Ev): - /* FALLTHROUGH */ - case (MDOC_Fa): - /* FALLTHROUGH */ - case (MDOC_Dv): - /* FALLTHROUGH */ - case (MDOC_Ic): - /* FALLTHROUGH */ - case (MDOC_Sy): - /* FALLTHROUGH */ - case (MDOC_Sx): - /* FALLTHROUGH */ - case (MDOC_Va): - /* FALLTHROUGH */ - case (MDOC_Vt): - if (0 < sz) - break; - return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); - /* ======= ADD MORE MACRO CHECKS ABOVE. ======= */ - default: - abort(); - /* NOTREACHED */ - } - - mdoc_elem_alloc(mdoc, pos, tok, 0, NULL, (size_t)sz, _CC(args)); - return(1); -} - - -int -macro_text(MACRO_PROT_ARGS) +need_eq1(struct mdoc *mdoc, int tok, int pos, int sz) { - int lastarg, lastpunct, c, j; - char *args[MDOC_LINEARG_MAX]; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - - /* Token pre-processing. */ - - switch (tok) { - case (MDOC_Pp): - /* `.Pp' ignored when following `.Sh' or `.Ss'. */ - assert(mdoc->last); - if (MDOC_BODY != mdoc->last->type) - break; - switch (mdoc->last->data.body.tok) { - case (MDOC_Ss): - /* FALLTHROUGH */ - case (MDOC_Sh): - if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_AFTER_BLK)) - return(0); - return(1); - default: - break; - } - break; - default: - break; - } - - /* Process line parameters. */ - - j = 0; - lastarg = ppos; - lastpunct = 0; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - /* - * Parse out the next argument, unquoted and unescaped. If - * we're a word (which may be punctuation followed eventually by - * a real word), then fall into checking for callables. If - * only punctuation remains and we're the first, then flush - * arguments, punctuation and exit; else, return to the caller. - */ - - lastarg = *pos; - - switch (mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &args[j])) { - case (ARGS_ERROR): - return(0); - case (ARGS_WORD): - break; - case (ARGS_PUNCT): - if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args)) - return(0); - if (ppos > 1) - return(1); - return(append_delims(mdoc, tok, pos, buf)); - case (ARGS_EOLN): - if (lastpunct) - return(1); - return(append_text(mdoc, tok, ppos, j, args)); - default: - abort(); - /* NOTREACHED */ - } - - /* - * Command found. First flush out arguments, then call the - * command. If we're the line macro when it exits, flush - * terminal punctuation. - */ - - if (MDOC_MAX != (c = mdoc_find(mdoc, args[j]))) { - if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args)) - return(0); - if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) - return(0); - if (ppos > 1) - return(1); - return(append_delims(mdoc, tok, pos, buf)); - } - - /* Word/non-term-punctuation found. */ - - if ( ! mdoc_isdelim(args[j])) { - /* Words are appended to the array of arguments. */ - j++; - lastpunct = 0; - goto again; - } - - /* - * For punctuation, flush all collected words, then flush - * punctuation, then start collecting again. Of course, this - * is non-terminal punctuation. - */ - - if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args)) - return(0); - - mdoc_word_alloc(mdoc, lastarg, args[j]); - j = 0; - lastpunct = 1; - - goto again; - /* NOTREACHED */ -} - - -int -macro_prologue_dtitle(MACRO_PROT_ARGS) -{ - int lastarg, j; - char *args[MDOC_LINEARG_MAX]; - - if (SEC_PROLOGUE != mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE)); - if (0 == mdoc->meta.date) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO)); - if (mdoc->meta.title[0]) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP)); - - j = -1; - lastarg = ppos; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - lastarg = *pos; - - switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[++j])) { - case (ARGS_EOLN): - if (mdoc->meta.title) - return(1); - if ( ! mdoc_warn(mdoc, tok, ppos, WARN_ARGS_GE1)) - return(0); - (void)xstrlcpy(mdoc->meta.title, - "UNTITLED", META_TITLE_SZ); + if (sz == 1) return(1); - case (ARGS_ERROR): - return(0); - default: - break; - } - - if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn - (mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) - return(0); - - if (0 == j) { - if (xstrlcpy(mdoc->meta.title, args[0], META_TITLE_SZ)) - goto again; - return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); - - } else if (1 == j) { - mdoc->meta.msec = mdoc_atomsec(args[1]); - if (MSEC_DEFAULT != mdoc->meta.msec) - goto again; - return(mdoc_err(mdoc, tok, -1, ERR_SYNTAX_ARGFORM)); - - } else if (2 == j) { - mdoc->meta.vol = mdoc_atovol(args[2]); - if (VOL_DEFAULT != mdoc->meta.vol) - goto again; - mdoc->meta.arch = mdoc_atoarch(args[2]); - if (ARCH_DEFAULT != mdoc->meta.arch) - goto again; - return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); - } - - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); + return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ1)); } -int -macro_prologue_os(MACRO_PROT_ARGS) +static int +need_ge1(struct mdoc *mdoc, int tok, int pos, int sz) { - int lastarg, j; - char *args[MDOC_LINEARG_MAX]; - - if (SEC_PROLOGUE != mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE)); - if (0 == mdoc->meta.title[0]) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO)); - if (mdoc->meta.os[0]) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP)); - - j = -1; - lastarg = ppos; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - lastarg = *pos; - - switch (mdoc_args(mdoc, tok, pos, buf, - ARGS_QUOTED, &args[++j])) { - case (ARGS_EOLN): - mdoc->sec_lastn = mdoc->sec_last = SEC_BODY; + if (sz > 0) return(1); - case (ARGS_ERROR): - return(0); - default: - break; - } - - if ( ! xstrlcat(mdoc->meta.os, args[j], sizeof(mdoc->meta.os))) - return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); - if ( ! xstrlcat(mdoc->meta.os, " ", sizeof(mdoc->meta.os))) - return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); - - goto again; - /* NOTREACHED */ -} - - -int -macro_prologue_ddate(MACRO_PROT_ARGS) -{ - int lastarg, j; - char *args[MDOC_LINEARG_MAX], date[64]; - - if (SEC_PROLOGUE != mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE)); - if (mdoc->meta.title[0]) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO)); - if (mdoc->meta.date) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP)); - - j = -1; - date[0] = 0; - lastarg = ppos; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - lastarg = *pos; - switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[++j])) { - case (ARGS_EOLN): - if (mdoc->meta.date) - return(1); - mdoc->meta.date = mdoc_atotime(date); - if (mdoc->meta.date) - return(1); - return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGFORM)); - case (ARGS_ERROR): - return(0); - default: - break; - } - - if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn - (mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) - return(0); - - if (0 == j) { - if (xstrcmp("$Mdocdate$", args[j])) { - mdoc->meta.date = time(NULL); - goto again; - } else if (xstrcmp("$Mdocdate:", args[j])) - goto again; - } else if (4 == j) - if ( ! xstrcmp("$", args[j])) - goto again; - - if ( ! xstrlcat(date, args[j], sizeof(date))) - return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); - if ( ! xstrlcat(date, " ", sizeof(date))) - return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); - - goto again; - /* NOTREACHED */ + return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); } -int -macro_scoped_explicit(MACRO_PROT_ARGS) +static int +v_Sh(struct mdoc *mdoc, int tok, int pos, + int sz, const char *args[], + int argc, const struct mdoc_arg *argv) { - int c, lastarg, j; - struct mdoc_arg argv[MDOC_LINEARG_MAX]; - struct mdoc_node *n; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); + enum mdoc_sec sec; - /* - * First close out the explicit scope. The `end' tags (such as - * `.El' to `.Bl' don't cause anything to happen: we merely - * readjust our last parse point. - */ - - switch (tok) { - case (MDOC_El): - return(scope_rewind_exp(mdoc, ppos, tok, MDOC_Bl)); - case (MDOC_Ed): - return(scope_rewind_exp(mdoc, ppos, tok, MDOC_Bd)); - default: - break; - } - - assert(MDOC_EXPLICIT & mdoc_macros[tok].flags); - - /* Token pre-processing. */ - - switch (tok) { - case (MDOC_Bl): - /* FALLTHROUGH */ - case (MDOC_Bd): - /* `.Pp' ignored when preceding `.Bl' or `.Bd'. */ - assert(mdoc->last); - if (MDOC_ELEM != mdoc->last->type) - break; - if (MDOC_Pp != mdoc->last->data.elem.tok) - break; - if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_BEFORE_BLK)) + sec = mdoc_atosec((size_t)sz, args); + if (SEC_CUSTOM != sec && sec < mdoc->sec_lastn) + if ( ! mdoc_warn(mdoc, tok, pos, WARN_SEC_OO)) return(0); - assert(mdoc->last->prev); - n = mdoc->last; - mdoc->last = mdoc->last->prev; - mdoc->last->next = NULL; - mdoc_node_free(n); - break; - default: - break; - } + if (SEC_BODY == mdoc->sec_last && SEC_NAME != sec) + return(mdoc_err(mdoc, tok, pos, ERR_SEC_NAME)); - lastarg = *pos; - - for (j = 0; j < MDOC_LINEARG_MAX; j++) { - lastarg = *pos; - c = mdoc_argv(mdoc, tok, &argv[j], pos, buf); - if (0 == c) - break; - else if (1 == c) - continue; - - mdoc_argv_free(j, argv); - return(0); - } - - if (MDOC_LINEARG_MAX == j) { - mdoc_argv_free(j, argv); - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - } - - c = append_scoped(mdoc, tok, ppos, 0, NULL, j, argv); - mdoc_argv_free(j, argv); - return(c); + return(1); } -/* - * Implicity-scoped macros, like `.Ss', have a scope that terminates - * with a subsequent call to the same macro. Implicit macros cannot - * break the scope of explicitly-scoped macros; however, they can break - * the scope of other implicit macros (so `.Sh' can break `.Ss'). This - * is ok with macros like `.It' because they exist only within an - * explicit context. - * - * These macros put line arguments (which it's allowed to have) into the - * HEAD section and open a BODY scope to be used until the macro scope - * closes. - */ -int -macro_scoped_implicit(MACRO_PROT_ARGS) +static int +v_At(struct mdoc *mdoc, int tok, int pos, + int sz, const char *args[], + int argc, const struct mdoc_arg *argv) { - int lastarg, j; - char *args[MDOC_LINEARG_MAX]; - struct mdoc_node *n; - - assert( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)); - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - - /* Token pre-processing. */ - - switch (tok) { - case (MDOC_Ss): - /* FALLTHROUGH */ - case (MDOC_Sh): - /* `.Pp' ignored when preceding `.Ss' or `.Sh'. */ - if (NULL == mdoc->last) - break; - if (MDOC_ELEM != mdoc->last->type) - break; - if (MDOC_Pp != mdoc->last->data.elem.tok) - break; - if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_BEFORE_BLK)) - return(0); - assert(mdoc->last->prev); - n = mdoc->last; - mdoc_msg(mdoc, ppos, "removing prior `Pp' macro"); - mdoc->last = mdoc->last->prev; - mdoc->last->next = NULL; - mdoc_node_free(n); - break; - default: - break; - } - - /* Rewind our scope. */ - - if ( ! scope_rewind_imp(mdoc, ppos, tok)) - return(0); + int i; - j = 0; - lastarg = ppos; - - /* - * Process until we hit a line. Note that current implicit - * macros don't have any arguments, so we don't need to do any - * argument processing. - */ - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); + if (0 == sz) + return(1); - lastarg = *pos; + i = 0; + if (ATT_DEFAULT == mdoc_atoatt(args[i])) + i++; - switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[j])) { - case (ARGS_ERROR): - return(0); - case (ARGS_EOLN): - return(append_scoped(mdoc, tok, ppos, j, _CC(args), 0, NULL)); - default: - break; + for ( ; i < sz; i++) { + if ( ! mdoc_isdelim(args[i])) + continue; + return(mdoc_err(mdoc, tok, pos, ERR_SYNTAX_NOPUNCT)); } - - if (MDOC_MAX != mdoc_find(mdoc, args[j])) - if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) - return(0); - - j++; - goto again; - /* NOTREACHED */ + return(1); } -/* - * A line-scoped macro opens a scope for the contents of its line, which - * are placed under the HEAD node. Punctuation trailing the line is put - * as a sibling to the HEAD node, under the BLOCK node. - */ -int -macro_scoped_line(MACRO_PROT_ARGS) +static int +v_Bd(struct mdoc *mdoc, int tok, int pos, + int sz, const char *args[], + int argc, const struct mdoc_arg *argv) { - int lastarg, c, j; - char *p; - struct mdoc_node *n; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - - assert(1 == ppos); - - /* Token pre-processing. */ - - switch (tok) { - case (MDOC_D1): - /* FALLTHROUGH */ - case (MDOC_Dl): - /* These can't be nested in a display block. */ - assert(mdoc->last); - for (n = mdoc->last->parent ; n; n = n->parent) - if (MDOC_BLOCK != n->type) - continue; - else if (MDOC_Bd == n->data.block.tok) - break; - if (NULL == n) - break; - return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NONEST)); - default: - break; - } + struct mdoc_node *node; /* - * All line-scoped macros have a HEAD and optionally a BODY - * section. We open our scope here; when we exit this function, - * we'll rewind our scope appropriately. + * We can't be nested within any other block displays (or really + * any other kind of display, although Bd is the only multi-line + * one that will show up). */ + assert(mdoc->last); - mdoc_block_alloc(mdoc, ppos, tok, 0, NULL); - mdoc_head_alloc(mdoc, ppos, tok, 0, NULL); - - /* Process line parameters. */ - - j = 0; - lastarg = ppos; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - lastarg = *pos; - c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p); - - switch (c) { - case (ARGS_ERROR): - return(0); - case (ARGS_WORD): - break; - case (ARGS_PUNCT): - if ( ! append_delims(mdoc, tok, pos, buf)) - return(0); - return(scope_rewind_imp(mdoc, ppos, tok)); - case (ARGS_EOLN): - return(scope_rewind_imp(mdoc, ppos, tok)); - default: - abort(); - /* NOTREACHED */ - } - - if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { - if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) - return(0); - if ( ! append_delims(mdoc, tok, pos, buf)) - return(0); - return(scope_rewind_imp(mdoc, ppos, tok)); - } - - if (mdoc_isdelim(p)) - j = 0; - - mdoc_word_alloc(mdoc, lastarg, p); - goto again; - /* NOTREACHED */ -} - - -/* - * Partial-line scope is identical to line scope (macro_scoped_line()) - * except that trailing punctuation is appended to the BLOCK, instead of - * contained within the HEAD. - */ -int -macro_scoped_pline(MACRO_PROT_ARGS) -{ - int lastarg, c, j; - char *p; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - - /* Token pre-processing. */ - - switch (tok) { - case (MDOC_Ql): - if ( ! mdoc_warn(mdoc, tok, ppos, WARN_COMPAT_TROFF)) - return(0); - break; - default: - break; - } - - mdoc_block_alloc(mdoc, ppos, tok, 0, NULL); - mdoc_head_alloc(mdoc, ppos, tok, 0, NULL); - - /* Process line parameters. */ - - j = 0; - lastarg = ppos; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - lastarg = *pos; - c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p); - - switch (c) { - case (ARGS_ERROR): - return(0); - case (ARGS_WORD): - break; - case (ARGS_PUNCT): - if ( ! scope_rewind_imp(mdoc, ppos, tok)) - return(0); - if (ppos > 1) - return(1); - return(append_delims(mdoc, tok, pos, buf)); - case (ARGS_EOLN): - return(scope_rewind_imp(mdoc, ppos, tok)); - default: - abort(); - /* NOTREACHED */ - } - - if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { - if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) - return(0); - if ( ! scope_rewind_imp(mdoc, ppos, tok)) - return(0); - if (ppos > 1) - return(1); - return(append_delims(mdoc, tok, pos, buf)); - } - - if (mdoc_isdelim(p)) - j = 0; - - mdoc_word_alloc(mdoc, lastarg, p); - goto again; - /* NOTREACHED */ -} - - -/* - * A delimited-constant macro is similar to a general text macro: the - * macro is followed by a 0 or 1 arguments (possibly-unspecified) then - * terminating punctuation, other words, or another callable macro. - */ -int -macro_constant_delimited(MACRO_PROT_ARGS) -{ - int lastarg, flushed, c, maxargs; - char *p; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - - /* Process line parameters. */ - - lastarg = ppos; - flushed = 0; - - /* Token pre-processing. */ - - switch (tok) { - case (MDOC_Ux): - maxargs = 0; - break; - default: - maxargs = 1; + /* LINTED */ + for (node = mdoc->last->parent ; node; node = node->parent) { + if (node->type != MDOC_BLOCK) + continue; + if (node->data.block.tok != MDOC_Bd) + continue; break; } - -again: - lastarg = *pos; - - switch (mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p)) { - case (ARGS_ERROR): - return(0); - case (ARGS_WORD): - break; - case (ARGS_PUNCT): - if ( ! flushed && ! append_const(mdoc, tok, ppos, 0, &p)) - return(0); - if (ppos > 1) - return(1); - return(append_delims(mdoc, tok, pos, buf)); - case (ARGS_EOLN): - if (flushed) - return(1); - return(append_const(mdoc, tok, ppos, 0, &p)); - default: - abort(); - /* NOTREACHED */ - } - - /* Accepts no arguments: flush out symbol and continue. */ - - if (0 == maxargs) { - if ( ! append_const(mdoc, tok, ppos, 0, &p)) - return(0); - flushed = 1; - } - - if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { - if ( ! flushed && ! append_const(mdoc, tok, ppos, 0, &p)) - return(0); - if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) - return(0); - if (ppos > 1) - return(1); - return(append_delims(mdoc, tok, pos, buf)); - } - - /* - * We only accept one argument; subsequent tokens are considered - * as literal words (until a macro). - */ - - if ( ! flushed && ! mdoc_isdelim(p)) { - if ( ! append_const(mdoc, tok, ppos, 1, &p)) - return(0); - flushed = 1; - goto again; - } else if ( ! flushed) { - if ( ! append_const(mdoc, tok, ppos, 0, &p)) - return(0); - flushed = 1; - } - - mdoc_word_alloc(mdoc, lastarg, p); - goto again; - /* NOTREACHED */ + if (NULL == node) + return(1); + return(mdoc_err(mdoc, tok, pos, ERR_SCOPE_NONEST)); } int -macro_constant(MACRO_PROT_ARGS) +mdoc_valid(struct mdoc *mdoc, int tok, int pos, + int sz, const char *args[], + int argc, const struct mdoc_arg *argv) { - int lastarg, j; - char *args[MDOC_LINEARG_MAX]; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - j = 0; - lastarg = ppos; - -again: - if (j == MDOC_LINEARG_MAX) - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - - lastarg = *pos; - - switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[j])) { - case (ARGS_ERROR): - return(0); - case (ARGS_WORD): - break; - case (ARGS_EOLN): - return(append_const(mdoc, tok, ppos, j, args)); - default: - abort(); - /* NOTREACHED */ - } - - if (MDOC_MAX != mdoc_find(mdoc, args[j])) - if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) + assert(tok < MDOC_MAX); + if (mdoc_valids[tok].sz) + if ( ! (*mdoc_valids[tok].sz)(mdoc, tok, pos, sz)) return(0); - j++; - goto again; - /* NOTREACHED */ + if (NULL == mdoc_valids[tok].extra) + return(1); + return(*mdoc_valids[tok].extra)(mdoc, + tok, pos, sz, args, argc, argv); } - -int -macro_constant_argv(MACRO_PROT_ARGS) -{ - int c, lastarg, j; - struct mdoc_arg argv[MDOC_LINEARG_MAX]; - - if (SEC_PROLOGUE == mdoc->sec_lastn) - return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); - - lastarg = *pos; - - for (j = 0; j < MDOC_LINEARG_MAX; j++) { - lastarg = *pos; - c = mdoc_argv(mdoc, tok, &argv[j], pos, buf); - if (0 == c) - break; - else if (1 == c) - continue; - - mdoc_argv_free(j, argv); - return(0); - } - - if (MDOC_LINEARG_MAX == j) { - mdoc_argv_free(j, argv); - return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); - } - - c = append_constarg(mdoc, tok, ppos, j, argv); - mdoc_argv_free(j, argv); - return(c); -} |