/* $Id: mdoc_validate.c,v 1.52 2010/05/14 19:52:43 schwarze Exp $ */ /* * Copyright (c) 2008, 2009 Kristaps Dzonsons * * 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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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. */ #include #include #include #include #include #include #include #include "libmdoc.h" #include "libmandoc.h" /* FIXME: .Bl -diag can't have non-text children in HEAD. */ /* TODO: ignoring Pp (it's superfluous in some invocations). */ #define PRE_ARGS struct mdoc *mdoc, const struct mdoc_node *n #define POST_ARGS struct mdoc *mdoc typedef int (*v_pre)(PRE_ARGS); typedef int (*v_post)(POST_ARGS); struct valids { v_pre *pre; v_post *post; }; static int check_parent(PRE_ARGS, enum mdoct, enum mdoc_type); static int check_msec(PRE_ARGS, ...); static int check_sec(PRE_ARGS, ...); static int check_stdarg(PRE_ARGS); static int check_text(struct mdoc *, int, int, const char *); static int check_argv(struct mdoc *, const struct mdoc_node *, const struct mdoc_argv *); static int check_args(struct mdoc *, const struct mdoc_node *); static int err_child_lt(struct mdoc *, const char *, int); static int warn_child_lt(struct mdoc *, const char *, int); static int err_child_gt(struct mdoc *, const char *, int); static int warn_child_gt(struct mdoc *, const char *, int); static int err_child_eq(struct mdoc *, const char *, int); static int warn_child_eq(struct mdoc *, const char *, int); static int warn_count(struct mdoc *, const char *, int, const char *, int); static int err_count(struct mdoc *, const char *, int, const char *, int); static int berr_ge1(POST_ARGS); static int bwarn_ge1(POST_ARGS); static int ebool(POST_ARGS); static int eerr_eq0(POST_ARGS); static int eerr_eq1(POST_ARGS); static int eerr_ge1(POST_ARGS); static int eerr_le1(POST_ARGS); static int ewarn_ge1(POST_ARGS); static int herr_eq0(POST_ARGS); static int herr_ge1(POST_ARGS); static int hwarn_eq1(POST_ARGS); static int hwarn_eq0(POST_ARGS); static int hwarn_le1(POST_ARGS); static int post_an(POST_ARGS); static int post_at(POST_ARGS); static int post_bf(POST_ARGS); static int post_bl(POST_ARGS); static int post_bl_head(POST_ARGS); static int post_it(POST_ARGS); static int post_lb(POST_ARGS); static int post_nm(POST_ARGS); static int post_root(POST_ARGS); static int post_rs(POST_ARGS); static int post_sh(POST_ARGS); static int post_sh_body(POST_ARGS); static int post_sh_head(POST_ARGS); static int post_st(POST_ARGS); static int post_vt(POST_ARGS); static int pre_an(PRE_ARGS); static int pre_bd(PRE_ARGS); static int pre_bl(PRE_ARGS); static int pre_dd(PRE_ARGS); static int pre_display(PRE_ARGS); static int pre_dt(PRE_ARGS); static int pre_ex(PRE_ARGS); static int pre_fd(PRE_ARGS); static int pre_it(PRE_ARGS); static int pre_lb(PRE_ARGS); static int pre_os(PRE_ARGS); static int pre_rv(PRE_ARGS); static int pre_sh(PRE_ARGS); static int pre_ss(PRE_ARGS); static v_post posts_an[] = { post_an, NULL }; static v_post posts_at[] = { post_at, NULL }; static v_post posts_bd[] = { hwarn_eq0, bwarn_ge1, NULL }; static v_post posts_bf[] = { hwarn_le1, post_bf, NULL }; static v_post posts_bl[] = { bwarn_ge1, post_bl, NULL }; static v_post posts_bool[] = { eerr_eq1, ebool, NULL }; static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL }; static v_post posts_it[] = { post_it, NULL }; static v_post posts_lb[] = { eerr_eq1, post_lb, NULL }; static v_post posts_nd[] = { berr_ge1, NULL }; static v_post posts_nm[] = { post_nm, NULL }; static v_post posts_notext[] = { eerr_eq0, NULL }; static v_post posts_rs[] = { berr_ge1, herr_eq0, post_rs, NULL }; static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL }; static v_post posts_sp[] = { eerr_le1, NULL }; static v_post posts_ss[] = { herr_ge1, NULL }; static v_post posts_st[] = { eerr_eq1, post_st, NULL }; static v_post posts_text[] = { eerr_ge1, NULL }; static v_post posts_text1[] = { eerr_eq1, NULL }; static v_post posts_vt[] = { post_vt, NULL }; static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL }; static v_post posts_wtext[] = { ewarn_ge1, NULL }; static v_post posts_xr[] = { ewarn_ge1, NULL }; static v_pre pres_an[] = { pre_an, NULL }; static v_pre pres_bd[] = { pre_display, pre_bd, NULL }; static v_pre pres_bl[] = { pre_bl, NULL }; static v_pre pres_d1[] = { pre_display, NULL }; static v_pre pres_dd[] = { pre_dd, NULL }; static v_pre pres_dt[] = { pre_dt, NULL }; static v_pre pres_er[] = { NULL, NULL }; static v_pre pres_ex[] = { pre_ex, NULL }; static v_pre pres_fd[] = { pre_fd, NULL }; static v_pre pres_it[] = { pre_it, NULL }; static v_pre pres_lb[] = { pre_lb, NULL }; static v_pre pres_os[] = { pre_os, NULL }; static v_pre pres_rv[] = { pre_rv, NULL }; static v_pre pres_sh[] = { pre_sh, NULL }; static v_pre pres_ss[] = { pre_ss, NULL }; const struct valids mdoc_valids[MDOC_MAX] = { { NULL, NULL }, /* Ap */ { pres_dd, posts_text }, /* Dd */ { pres_dt, NULL }, /* Dt */ { pres_os, NULL }, /* Os */ { pres_sh, posts_sh }, /* Sh */ { pres_ss, posts_ss }, /* Ss */ { NULL, posts_notext }, /* Pp */ { pres_d1, posts_wline }, /* D1 */ { pres_d1, posts_wline }, /* Dl */ { pres_bd, posts_bd }, /* Bd */ { NULL, NULL }, /* Ed */ { pres_bl, posts_bl }, /* Bl */ { NULL, NULL }, /* El */ { pres_it, posts_it }, /* It */ { NULL, posts_text }, /* Ad */ { pres_an, posts_an }, /* An */ { NULL, NULL }, /* Ar */ { NULL, posts_text }, /* Cd */ { NULL, NULL }, /* Cm */ { NULL, NULL }, /* Dv */ { pres_er, posts_text }, /* Er */ { NULL, NULL }, /* Ev */ { pres_ex, NULL }, /* Ex */ { NULL, NULL }, /* Fa */ { pres_fd, posts_wtext }, /* Fd */ { NULL, NULL }, /* Fl */ { NULL, posts_text }, /* Fn */ { NULL, posts_wtext }, /* Ft */ { NULL, posts_text }, /* Ic */ { NULL, posts_text1 }, /* In */ { NULL, NULL }, /* Li */ { NULL, posts_nd }, /* Nd */ { NULL, posts_nm }, /* Nm */ { NULL, posts_wline }, /* Op */ { NULL, NULL }, /* Ot */ { NULL, NULL }, /* Pa */ { pres_rv, NULL }, /* Rv */ { NULL, posts_st }, /* St */ { NULL, NULL }, /* Va */ { NULL, posts_vt }, /* Vt */ { NULL, posts_xr }, /* Xr */ { NULL, posts_text }, /* %A */ { NULL, posts_text }, /* %B */ /* FIXME: can be used outside Rs/Re. */ { NULL, posts_text }, /* %D */ /* FIXME: check date with mandoc_a2time(). */ { NULL, posts_text }, /* %I */ { NULL, posts_text }, /* %J */ { NULL, posts_text }, /* %N */ { NULL, posts_text }, /* %O */ { NULL, posts_text }, /* %P */ { NULL, posts_text }, /* %R */ { NULL, posts_text }, /* %T */ /* FIXME: can be used outside Rs/Re. */ { NULL, posts_text }, /* %V */ { NULL, NULL }, /* Ac */ { NULL, NULL }, /* Ao */ { NULL, posts_wline }, /* Aq */ { NULL, posts_at }, /* At */ { NULL, NULL }, /* Bc */ { NULL, posts_bf }, /* Bf */ { NULL, NULL }, /* Bo */ { NULL, posts_wline }, /* Bq */ { NULL, NULL }, /* Bsx */ { NULL, NULL }, /* Bx */ { NULL, posts_bool }, /* Db */ { NULL, NULL }, /* Dc */ { NULL, NULL }, /* Do */ { NULL, posts_wline }, /* Dq */ { NULL, NULL }, /* Ec */ { NULL, NULL }, /* Ef */ { NULL, NULL }, /* Em */ { NULL, NULL }, /* Eo */ { NULL, NULL }, /* Fx */ { NULL, posts_text }, /* Ms */ { NULL, posts_notext }, /* No */ { NULL, posts_notext }, /* Ns */ { NULL, NULL }, /* Nx */ { NULL, NULL }, /* Ox */ { NULL, NULL }, /* Pc */ { NULL, posts_text1 }, /* Pf */ { NULL, NULL }, /* Po */ { NULL, posts_wline }, /* Pq */ { NULL, NULL }, /* Qc */ { NULL, posts_wline }, /* Ql */ { NULL, NULL }, /* Qo */ { NULL, posts_wline }, /* Qq */ { NULL, NULL }, /* Re */ { NULL, posts_rs }, /* Rs */ { NULL, NULL }, /* Sc */ { NULL, NULL }, /* So */ { NULL, posts_wline }, /* Sq */ { NULL, posts_bool }, /* Sm */ { NULL, posts_text }, /* Sx */ { NULL, posts_text }, /* Sy */ { NULL, posts_text }, /* Tn */ { NULL, NULL }, /* Ux */ { NULL, NULL }, /* Xc */ { NULL, NULL }, /* Xo */ { NULL, posts_fo }, /* Fo */ { NULL, NULL }, /* Fc */ { NULL, NULL }, /* Oo */ { NULL, NULL }, /* Oc */ { NULL, posts_wline }, /* Bk */ { NULL, NULL }, /* Ek */ { NULL, posts_notext }, /* Bt */ { NULL, NULL }, /* Hf */ { NULL, NULL }, /* Fr */ { NULL, posts_notext }, /* Ud */ { pres_lb, posts_lb }, /* Lb */ { NULL, posts_notext }, /* Lp */ { NULL, posts_text }, /* Lk */ { NULL, posts_text }, /* Mt */ { NULL, posts_wline }, /* Brq */ { NULL, NULL }, /* Bro */ { NULL, NULL }, /* Brc */ { NULL, posts_text }, /* %C */ { NULL, NULL }, /* Es */ { NULL, NULL }, /* En */ { NULL, NULL }, /* Dx */ { NULL, posts_text }, /* %Q */ { NULL, posts_notext }, /* br */ { NULL, posts_sp }, /* sp */ { NULL, posts_text1 }, /* %U */ }; int mdoc_valid_pre(struct mdoc *mdoc, const struct mdoc_node *n) { v_pre *p; int line, pos; const char *tp; if (MDOC_TEXT == n->type) { tp = n->string; line = n->line; pos = n->pos; return(check_text(mdoc, line, pos, tp)); } if ( ! check_args(mdoc, n)) return(0); if (NULL == mdoc_valids[n->tok].pre) return(1); for (p = mdoc_valids[n->tok].pre; *p; p++) if ( ! (*p)(mdoc, n)) return(0); return(1); } int mdoc_valid_post(struct mdoc *mdoc) { v_post *p; if (MDOC_VALID & mdoc->last->flags) return(1); mdoc->last->flags |= MDOC_VALID; if (MDOC_TEXT == mdoc->last->type) return(1); if (MDOC_ROOT == mdoc->last->type) return(post_root(mdoc)); if (NULL == mdoc_valids[mdoc->last->tok].post) return(1); for (p = mdoc_valids[mdoc->last->tok].post; *p; p++) if ( ! (*p)(mdoc)) return(0); return(1); } static inline int warn_count(struct mdoc *m, const char *k, int want, const char *v, int has) { return(mdoc_vwarn(m, m->last->line, m->last->pos, "suggests %s %s %d (has %d)", v, k, want, has)); } static inline int err_count(struct mdoc *m, const char *k, int want, const char *v, int has) { return(mdoc_verr(m, m->last->line, m->last->pos, "requires %s %s %d (has %d)", v, k, want, has)); } /* * Build these up with macros because they're basically the same check * for different inequalities. Yes, this could be done with functions, * but this is reasonable for now. */ #define CHECK_CHILD_DEFN(lvl, name, ineq) \ static int \ lvl##_child_##name(struct mdoc *mdoc, const char *p, int sz) \ { \ if (mdoc->last->nchild ineq sz) \ return(1); \ return(lvl##_count(mdoc, #ineq, sz, p, mdoc->last->nchild)); \ } #define CHECK_BODY_DEFN(name, lvl, func, num) \ static int \ b##lvl##_##name(POST_ARGS) \ { \ if (MDOC_BODY != mdoc->last->type) \ return(1); \ return(func(mdoc, "multi-line arguments", (num))); \ } #define CHECK_ELEM_DEFN(name, lvl, func, num) \ static int \ e##lvl##_##name(POST_ARGS) \ { \ assert(MDOC_ELEM == mdoc->last->type); \ return(func(mdoc, "line arguments", (num))); \ } #define CHECK_HEAD_DEFN(name, lvl, func, num) \ static int \ h##lvl##_##name(POST_ARGS) \ { \ if (MDOC_HEAD != mdoc->last->type) \ return(1); \ return(func(mdoc, "line arguments", (num))); \ } CHECK_CHILD_DEFN(warn, gt, >) /* warn_child_gt() */ CHECK_CHILD_DEFN(err, gt, >) /* err_child_gt() */ CHECK_CHILD_DEFN(warn, eq, ==) /* warn_child_eq() */ CHECK_CHILD_DEFN(err, eq, ==) /* err_child_eq() */ CHECK_CHILD_DEFN(err, lt, <) /* err_child_lt() */ CHECK_CHILD_DEFN(warn, lt, <) /* warn_child_lt() */ CHECK_BODY_DEFN(ge1, warn, warn_child_gt, 0) /* bwarn_ge1() */ CHECK_BODY_DEFN(ge1, err, err_child_gt, 0) /* berr_ge1() */ CHECK_ELEM_DEFN(ge1, warn, warn_child_gt, 0) /* ewarn_gt1() */ CHECK_ELEM_DEFN(eq1, err, err_child_eq, 1) /* eerr_eq1() */ CHECK_ELEM_DEFN(le1, err, err_child_lt, 2) /* eerr_le1() */ CHECK_ELEM_DEFN(eq0, err, err_child_eq, 0) /* eerr_eq0() */ CHECK_ELEM_DEFN(ge1, err, err_child_gt, 0) /* eerr_ge1() */ CHECK_HEAD_DEFN(eq0, err, err_child_eq, 0) /* herr_eq0() */ CHECK_HEAD_DEFN(le1, warn, warn_child_lt, 2) /* hwarn_le1() */ CHECK_HEAD_DEFN(ge1, err, err_child_gt, 0) /* herr_ge1() */ CHECK_HEAD_DEFN(eq1, warn, warn_child_eq, 1) /* hwarn_eq1() */ CHECK_HEAD_DEFN(eq0, warn, warn_child_eq, 0) /* hwarn_eq0() */ static int check_stdarg(PRE_ARGS) { if (n->args && 1 == n->args->argc) if (MDOC_Std == n->args->argv[0].arg) return(1); return(mdoc_nwarn(mdoc, n, EARGVAL)); } static int check_sec(PRE_ARGS, ...) { enum mdoc_sec sec; va_list ap; va_start(ap, n); for (;;) { /* LINTED */ sec = (enum mdoc_sec)va_arg(ap, int); if (SEC_CUSTOM == sec) break; if (sec != mdoc->lastsec) continue; va_end(ap); return(1); } va_end(ap); return(mdoc_nwarn(mdoc, n, EBADSEC)); } static int check_msec(PRE_ARGS, ...) { va_list ap; int msec; va_start(ap, n); for (;;) { /* LINTED */ if (0 == (msec = va_arg(ap, int))) break; if (msec != mdoc->meta.msec) continue; va_end(ap); return(1); } va_end(ap); return(mdoc_nwarn(mdoc, n, EBADMSEC)); } static int check_args(struct mdoc *m, const struct mdoc_node *n) { int i; if (NULL == n->args) return(1); assert(n->args->argc); for (i = 0; i < (int)n->args->argc; i++) if ( ! check_argv(m, n, &n->args->argv[i])) return(0); return(1); } static int check_argv(struct mdoc *m, const struct mdoc_node *n, const struct mdoc_argv *v) { int i; for (i = 0; i < (int)v->sz; i++) if ( ! check_text(m, v->line, v->pos, v->value[i])) return(0); if (MDOC_Std == v->arg) { /* `Nm' name must be set. */ if (v->sz || m->meta.name) return(1); return(mdoc_nerr(m, n, ENAME)); } return(1); } static int check_text(struct mdoc *mdoc, int line, int pos, const char *p) { int c; for ( ; *p; p++, pos++) { if ('\t' == *p) { if ( ! (MDOC_LITERAL & mdoc->flags)) if ( ! mdoc_pwarn(mdoc, line, pos, EPRINT)) return(0); } else if ( ! isprint((u_char)*p)) if ( ! mdoc_pwarn(mdoc, line, pos, EPRINT)) return(0); if ('\\' != *p) continue; c = mandoc_special(p); if (c) { p += c - 1; pos += c - 1; continue; } if ( ! (MDOC_IGN_ESCAPE & mdoc->pflags)) return(mdoc_perr(mdoc, line, pos, EESCAPE)); if ( ! mdoc_pwarn(mdoc, line, pos, EESCAPE)) return(0); } return(1); } static int check_parent(PRE_ARGS, enum mdoct tok, enum mdoc_type t) { assert(n->parent); if ((MDOC_ROOT == t || tok == n->parent->tok) && (t == n->parent->type)) return(1); return(mdoc_verr(mdoc, n->line, n->pos, "require parent %s", MDOC_ROOT == t ? "" : mdoc_macronames[tok])); } static int pre_display(PRE_ARGS) { struct mdoc_node *node; /* Display elements (`Bd', `D1'...) cannot be nested. */ if (MDOC_BLOCK != n->type) return(1); /* LINTED */ for (node = mdoc->last->parent; node; node = node->parent) if (MDOC_BLOCK == node->type) if (MDOC_Bd == node->tok) break; if (NULL == node) return(1); return(mdoc_nerr(mdoc, n, ENESTDISP)); } static int pre_bl(PRE_ARGS) { int pos, type, width, offset; if (MDOC_BLOCK != n->type) return(1); if (NULL == n->args) return(mdoc_nerr(mdoc, n, ELISTTYPE)); /* Make sure that only one type of list is specified. */ type = offset = width = -1; /* LINTED */ for (pos = 0; pos < (int)n->args->argc; pos++) switch (n->args->argv[pos].arg) { case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): /* FALLTHROUGH */ case (MDOC_Tag): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Column): /* * Note that if a duplicate is detected, we * remove the duplicate instead of passing it * over. If we don't do this, mdoc_action will * become confused when it scans over multiple * types whilst setting its bitmasks. * * FIXME: this should occur in mdoc_action.c. */ if (type >= 0) { if ( ! mdoc_nwarn(mdoc, n, EMULTILIST)) return(0); mdoc_argn_free(n->args, pos); break; } type = n->args->argv[pos].arg; break; case (MDOC_Compact): if (type < 0 && ! mdoc_nwarn(mdoc, n, ENOTYPE)) return(0); break; case (MDOC_Width): if (width >= 0) return(mdoc_nerr(mdoc, n, EARGREP)); if (type < 0 && ! mdoc_nwarn(mdoc, n, ENOTYPE)) return(0); width = n->args->argv[pos].arg; break; case (MDOC_Offset): if (offset >= 0) return(mdoc_nerr(mdoc, n, EARGREP)); if (type < 0 && ! mdoc_nwarn(mdoc, n, ENOTYPE)) return(0); offset = n->args->argv[pos].arg; break; default: break; } if (type < 0) return(mdoc_nerr(mdoc, n, ELISTTYPE)); /* * Validate the width field. Some list types don't need width * types and should be warned about them. Others should have it * and must also be warned. */ switch (type) { case (MDOC_Tag): if (width < 0 && ! mdoc_nwarn(mdoc, n, EMISSWIDTH)) return(0); break; case (MDOC_Column): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Item): if (width >= 0 && ! mdoc_nwarn(mdoc, n, ENOWIDTH)) return(0); break; default: break; } return(1); } static int pre_bd(PRE_ARGS) { int i, type, err; if (MDOC_BLOCK != n->type) return(1); if (NULL == n->args) return(mdoc_nerr(mdoc, n, EDISPTYPE)); /* Make sure that only one type of display is specified. */ /* LINTED */ for (i = 0, err = type = 0; ! err && i < (int)n->args->argc; i++) switch (n->args->argv[i].arg) { case (MDOC_Centred): /* FALLTHROUGH */ case (MDOC_Ragged): /* FALLTHROUGH */ case (MDOC_Unfilled): /* FALLTHROUGH */ case (MDOC_Filled): /* FALLTHROUGH */ case (MDOC_Literal): if (0 == type++) break; return(mdoc_nerr(mdoc, n, EMULTIDISP)); default: break; } if (type) return(1); return(mdoc_nerr(mdoc, n, EDISPTYPE)); } static int pre_ss(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY)); } static int pre_sh(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_MAX, MDOC_ROOT)); } static int pre_it(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY)); } static int pre_an(PRE_ARGS) { if (NULL == n->args || 1 == n->args->argc) return(1); return(mdoc_verr(mdoc, n->line, n->pos, "only one argument allowed")); } static int pre_lb(PRE_ARGS) { return(check_sec(mdoc, n, SEC_LIBRARY, SEC_CUSTOM)); } static int pre_rv(PRE_ARGS) { return(check_stdarg(mdoc, n)); } static int pre_ex(PRE_ARGS) { if ( ! check_msec(mdoc, n, 1, 6, 8, 0)) return(0); return(check_stdarg(mdoc, n)); } static int pre_dt(PRE_ARGS) { /* FIXME: make sure is capitalised. */ if (0 == mdoc->meta.date || mdoc->meta.os) if ( ! mdoc_nwarn(mdoc, n, EPROLOOO)) return(0); if (mdoc->meta.title) if ( ! mdoc_nwarn(mdoc, n, EPROLREP)) return(0); return(1); } static int pre_os(PRE_ARGS) { if (NULL == mdoc->meta.title || 0 == mdoc->meta.date) if ( ! mdoc_nwarn(mdoc, n, EPROLOOO)) return(0); if (mdoc->meta.os) if ( ! mdoc_nwarn(mdoc, n, EPROLREP)) return(0); return(1); } static int pre_dd(PRE_ARGS) { if (mdoc->meta.title || mdoc->meta.os) if ( ! mdoc_nwarn(mdoc, n, EPROLOOO)) return(0); if (mdoc->meta.date) if ( ! mdoc_nwarn(mdoc, n, EPROLREP)) return(0); return(1); } static int post_bf(POST_ARGS) { char *p; struct mdoc_node *head; if (MDOC_BLOCK != mdoc->last->type) return(1); head = mdoc->last->head; if (mdoc->last->args && head->child) return(mdoc_nerr(mdoc, mdoc->last, ELINE)); else if (mdoc->last->args) return(1); if (NULL == head->child || MDOC_TEXT != head->child->type) return(mdoc_nerr(mdoc, mdoc->last, ELINE)); p = head->child->string; if (0 == strcmp(p, "Em")) return(1); else if (0 == strcmp(p, "Li")) return(1); else if (0 == strcmp(p, "Sy")) return(1); return(mdoc_nerr(mdoc, head, EFONT)); } static int post_lb(POST_ARGS) { if (mdoc_a2lib(mdoc->last->child->string)) return(1); return(mdoc_nwarn(mdoc, mdoc->last, ELIB)); } static int post_vt(POST_ARGS) { const struct mdoc_node *n; /* * The Vt macro comes in both ELEM and BLOCK form, both of which * have different syntaxes (yet more context-sensitive * behaviour). ELEM types must have a child; BLOCK types, * specifically the BODY, should only have TEXT children. */ if (MDOC_ELEM == mdoc->last->type) return(eerr_ge1(mdoc)); if (MDOC_BODY != mdoc->last->type) return(1); for (n = mdoc->last->child; n; n = n->next) if (MDOC_TEXT != n->type) if ( ! mdoc_nwarn(mdoc, n, EBADCHILD)) return(0); return(1); } static int post_nm(POST_ARGS) { if (mdoc->last->child) return(1); if (mdoc->meta.name) return(1); return(mdoc_nerr(mdoc, mdoc->last, ENAME)); } static int post_at(POST_ARGS) { if (NULL == mdoc->last->child) return(1); if (MDOC_TEXT != mdoc->last->child->type) return(mdoc_nerr(mdoc, mdoc->last, EATT)); if (mdoc_a2att(mdoc->last->child->string)) return(1); return(mdoc_nerr(mdoc, mdoc->last, EATT)); } static int post_an(POST_ARGS) { if (mdoc->last->args) { if (NULL == mdoc->last->child) return(1); return(mdoc_nerr(mdoc, mdoc->last, ENOLINE)); } if (mdoc->last->child) return(1); return(mdoc_nerr(mdoc, mdoc->last, ELINE)); } static int post_it(POST_ARGS) { int type, i, cols; struct mdoc_node *n, *c; if (MDOC_BLOCK != mdoc->last->type) return(1); n = mdoc->last->parent->parent; if (NULL == n->args) return(mdoc_nerr(mdoc, mdoc->last, ELISTTYPE)); /* Some types require block-head, some not. */ /* LINTED */ for (cols = type = -1, i = 0; -1 == type && i < (int)n->args->argc; i++) switch (n->args->argv[i].arg) { case (MDOC_Tag): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): type = n->args->argv[i].arg; break; case (MDOC_Column): type = n->args->argv[i].arg; cols = (int)n->args->argv[i].sz; break; default: break; } if (-1 == type) return(mdoc_nerr(mdoc, mdoc->last, ELISTTYPE)); switch (type) { case (MDOC_Tag): if (NULL == mdoc->last->head->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, ELINE)) return(0); break; case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Diag): if (NULL == mdoc->last->head->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, ELINE)) return(0); if (NULL == mdoc->last->body->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, EMULTILINE)) return(0); break; case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): if (mdoc->last->head->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, ENOLINE)) return(0); if (NULL == mdoc->last->body->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, EMULTILINE)) return(0); break; case (MDOC_Column): if (NULL == mdoc->last->head->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, ELINE)) return(0); if (mdoc->last->body->child) if ( ! mdoc_nwarn(mdoc, mdoc->last, ENOMULTILINE)) return(0); c = mdoc->last->child; for (i = 0; c && MDOC_HEAD == c->type; c = c->next) i++; if (i < cols || i == (cols + 1)) { if ( ! mdoc_vwarn(mdoc, mdoc->last->line, mdoc->last->pos, "column " "mismatch: have %d, want %d", i, cols)) return(0); break; } else if (i == cols) break; return(mdoc_verr(mdoc, mdoc->last->line, mdoc->last->pos, "column mismatch: " "have %d, want %d", i, cols)); default: break; } return(1); } static int post_bl_head(POST_ARGS) { int i; const struct mdoc_node *n; const struct mdoc_argv *a; n = mdoc->last->parent; assert(n->args); for (i = 0; i < (int)n->args->argc; i++) { a = &n->args->argv[i]; if (a->arg == MDOC_Column) { if (a->sz && mdoc->last->nchild) return(mdoc_nerr(mdoc, n, ECOLMIS)); return(1); } } if (0 == (i = mdoc->last->nchild)) return(1); return(warn_count(mdoc, "==", 0, "line arguments", i)); } static int post_bl(POST_ARGS) { struct mdoc_node *n; if (MDOC_HEAD == mdoc->last->type) return(post_bl_head(mdoc)); if (MDOC_BODY != mdoc->last->type) return(1); if (NULL == mdoc->last->child) return(1); /* * We only allow certain children of `Bl'. This is usually on * `It', but apparently `Sm' occurs here and there, so we let * that one through, too. */ /* LINTED */ for (n = mdoc->last->child; n; n = n->next) { if (MDOC_BLOCK == n->type && MDOC_It == n->tok) continue; if (MDOC_Sm == n->tok) continue; return(mdoc_nerr(mdoc, n, EBADCHILD)); } return(1); } static int ebool(struct mdoc *mdoc) { struct mdoc_node *n; /* LINTED */ for (n = mdoc->last->child; n; n = n->next) { if (MDOC_TEXT != n->type) break; if (0 == strcmp(n->string, "on")) continue; if (0 == strcmp(n->string, "off")) continue; break; } if (NULL == n) return(1); return(mdoc_nerr(mdoc, n, EBOOL)); } static int post_root(POST_ARGS) { if (NULL == mdoc->first->child) return(mdoc_nerr(mdoc, mdoc->first, ENODAT)); if ( ! (MDOC_PBODY & mdoc->flags)) return(mdoc_nerr(mdoc, mdoc->first, ENOPROLOGUE)); if (MDOC_BLOCK != mdoc->first->child->type) return(mdoc_nerr(mdoc, mdoc->first, ENODAT)); if (MDOC_Sh != mdoc->first->child->tok) return(mdoc_nerr(mdoc, mdoc->first, ENODAT)); return(1); } static int post_st(POST_ARGS) { if (mdoc_a2st(mdoc->last->child->string)) return(1); return(mdoc_nerr(mdoc, mdoc->last, EBADSTAND)); } static int post_rs(POST_ARGS) { struct mdoc_node *nn; if (MDOC_BODY != mdoc->last->type) return(1); for (nn = mdoc->last->child; nn; nn = nn->next) switch (nn->tok) { case(MDOC__U): /* FALLTHROUGH */ case(MDOC__Q): /* FALLTHROUGH */ case(MDOC__C): /* FALLTHROUGH */ case(MDOC__A): /* FALLTHROUGH */ case(MDOC__B): /* FALLTHROUGH */ case(MDOC__D): /* FALLTHROUGH */ case(MDOC__I): /* FALLTHROUGH */ case(MDOC__J): /* FALLTHROUGH */ case(MDOC__N): /* FALLTHROUGH */ case(MDOC__O): /* FALLTHROUGH */ case(MDOC__P): /* FALLTHROUGH */ case(MDOC__R): /* FALLTHROUGH */ case(MDOC__T): /* FALLTHROUGH */ case(MDOC__V): break; default: return(mdoc_nerr(mdoc, nn, EBADCHILD)); } return(1); } static int post_sh(POST_ARGS) { if (MDOC_HEAD == mdoc->last->type) return(post_sh_head(mdoc)); if (MDOC_BODY == mdoc->last->type) return(post_sh_body(mdoc)); return(1); } static int post_sh_body(POST_ARGS) { struct mdoc_node *n; if (SEC_NAME != mdoc->lastsec) return(1); /* * Warn if the NAME section doesn't contain the `Nm' and `Nd' * macros (can have multiple `Nm' and one `Nd'). Note that the * children of the BODY declaration can also be "text". */ if (NULL == (n = mdoc->last->child)) return(mdoc_nwarn(mdoc, mdoc->last, ENAMESECINC)); for ( ; n && n->next; n = n->next) { if (MDOC_ELEM == n->type && MDOC_Nm == n->tok) continue; if (MDOC_TEXT == n->type) continue; if ( ! mdoc_nwarn(mdoc, mdoc->last, ENAMESECINC)) return(0); } assert(n); if (MDOC_BLOCK == n->type && MDOC_Nd == n->tok) return(1); return(mdoc_nwarn(mdoc, mdoc->last, ENAMESECINC)); } static int post_sh_head(POST_ARGS) { char buf[64]; enum mdoc_sec sec; const struct mdoc_node *n; /* * Process a new section. Sections are either "named" or * "custom"; custom sections are user-defined, while named ones * usually follow a conventional order and may only appear in * certain manual sections. */ buf[0] = 0; for (n = mdoc->last->child; n; n = n->next) { /* XXX - copied from compact(). */ assert(MDOC_TEXT == n->type); if (strlcat(buf, n->string, 64) >= 64) return(mdoc_nerr(mdoc, n, ETOOLONG)); if (NULL == n->next) continue; if (strlcat(buf, " ", 64) >= 64) return(mdoc_nerr(mdoc, n, ETOOLONG)); } sec = mdoc_str2sec(buf); /* * Check: NAME should always be first, CUSTOM has no roles, * non-CUSTOM has a conventional order to be followed. */ if (SEC_NAME != sec && SEC_NONE == mdoc->lastnamed) if ( ! mdoc_nwarn(mdoc, mdoc->last, ESECNAME)) return(0); if (SEC_CUSTOM == sec) return(1); if (sec == mdoc->lastnamed) if ( ! mdoc_nwarn(mdoc, mdoc->last, ESECREP)) return(0); if (sec < mdoc->lastnamed) if ( ! mdoc_nwarn(mdoc, mdoc->last, ESECOOO)) return(0); /* * Check particular section/manual conventions. LIBRARY can * only occur in msec 2, 3 (TODO: are there more of these?). */ switch (sec) { case (SEC_LIBRARY): switch (mdoc->meta.msec) { case (2): /* FALLTHROUGH */ case (3): break; default: return(mdoc_nwarn(mdoc, mdoc->last, EWRONGMSEC)); } break; default: break; } return(1); } static int pre_fd(PRE_ARGS) { return(check_sec(mdoc, n, SEC_SYNOPSIS, SEC_CUSTOM)); }