+
+#include "term.h"
+
+/*
+ * Performs actions on nodes of the abstract syntax tree. Both pre- and
+ * post-fix operations are defined here.
+ */
+
+/* FIXME: macro arguments can be escaped. */
+
+#define TTYPE_PROG 0
+#define TTYPE_CMD_FLAG 1
+#define TTYPE_CMD_ARG 2
+#define TTYPE_SECTION 3
+#define TTYPE_FUNC_DECL 4
+#define TTYPE_VAR_DECL 5
+#define TTYPE_FUNC_TYPE 6
+#define TTYPE_FUNC_NAME 7
+#define TTYPE_FUNC_ARG 8
+#define TTYPE_LINK 9
+#define TTYPE_SSECTION 10
+#define TTYPE_FILE 11
+#define TTYPE_EMPH 12
+#define TTYPE_CONFIG 13
+#define TTYPE_CMD 14
+#define TTYPE_INCLUDE 15
+#define TTYPE_SYMB 16
+#define TTYPE_SYMBOL 17
+#define TTYPE_DIAG 18
+#define TTYPE_NMAX 19
+
+/*
+ * These define "styles" for element types, like command arguments or
+ * executable names. This is useful when multiple macros must decorate
+ * the same thing (like .Ex -std cmd and .Nm cmd).
+ */
+
+/* TODO: abstract this into mdocterm.c. */
+
+const int ttypes[TTYPE_NMAX] = {
+ TERMP_BOLD, /* TTYPE_PROG */
+ TERMP_BOLD, /* TTYPE_CMD_FLAG */
+ TERMP_UNDERLINE, /* TTYPE_CMD_ARG */
+ TERMP_BOLD, /* TTYPE_SECTION */
+ TERMP_BOLD, /* TTYPE_FUNC_DECL */
+ TERMP_UNDERLINE, /* TTYPE_VAR_DECL */
+ TERMP_UNDERLINE, /* TTYPE_FUNC_TYPE */
+ TERMP_BOLD, /* TTYPE_FUNC_NAME */
+ TERMP_UNDERLINE, /* TTYPE_FUNC_ARG */
+ TERMP_UNDERLINE, /* TTYPE_LINK */
+ TERMP_BOLD, /* TTYPE_SSECTION */
+ TERMP_UNDERLINE, /* TTYPE_FILE */
+ TERMP_UNDERLINE, /* TTYPE_EMPH */
+ TERMP_BOLD, /* TTYPE_CONFIG */
+ TERMP_BOLD, /* TTYPE_CMD */
+ TERMP_BOLD, /* TTYPE_INCLUDE */
+ TERMP_BOLD, /* TTYPE_SYMB */
+ TERMP_BOLD, /* TTYPE_SYMBOL */
+ TERMP_BOLD /* TTYPE_DIAG */
+};
+
+static int arg_hasattr(int, const struct mdoc_node *);
+static int arg_getattr(int, const struct mdoc_node *);
+static size_t arg_offset(const struct mdoc_argv *);
+static size_t arg_width(const struct mdoc_argv *);
+static int arg_listtype(const struct mdoc_node *);
+
+/*
+ * What follows describes prefix and postfix operations for the abstract
+ * syntax tree descent.
+ */
+
+#define DECL_ARGS \
+ struct termp *p, \
+ struct termpair *pair, \
+ const struct mdoc_meta *meta, \
+ const struct mdoc_node *node
+
+#define DECL_PRE(name) \
+static int name##_pre(DECL_ARGS)
+#define DECL_POST(name) \
+static void name##_post(DECL_ARGS)
+#define DECL_PREPOST(name) \
+DECL_PRE(name); \
+DECL_POST(name);
+
+DECL_PREPOST(termp__t);
+DECL_PREPOST(termp_aq);
+DECL_PREPOST(termp_bd);
+DECL_PREPOST(termp_bq);
+DECL_PREPOST(termp_d1);
+DECL_PREPOST(termp_dq);
+DECL_PREPOST(termp_fd);
+DECL_PREPOST(termp_fn);
+DECL_PREPOST(termp_fo);
+DECL_PREPOST(termp_ft);
+DECL_PREPOST(termp_in);
+DECL_PREPOST(termp_it);
+DECL_PREPOST(termp_op);
+DECL_PREPOST(termp_pf);
+DECL_PREPOST(termp_pq);
+DECL_PREPOST(termp_qq);
+DECL_PREPOST(termp_sh);
+DECL_PREPOST(termp_ss);
+DECL_PREPOST(termp_sq);
+DECL_PREPOST(termp_vt);
+
+DECL_PRE(termp_ar);
+DECL_PRE(termp_at);
+DECL_PRE(termp_bf);
+DECL_PRE(termp_bsx);
+DECL_PRE(termp_bt);
+DECL_PRE(termp_cd);
+DECL_PRE(termp_cm);
+DECL_PRE(termp_em);
+DECL_PRE(termp_ex);
+DECL_PRE(termp_fa);
+DECL_PRE(termp_fl);
+DECL_PRE(termp_fx);
+DECL_PRE(termp_ic);
+DECL_PRE(termp_ms);
+DECL_PRE(termp_nd);
+DECL_PRE(termp_nm);
+DECL_PRE(termp_ns);
+DECL_PRE(termp_nx);
+DECL_PRE(termp_ox);
+DECL_PRE(termp_pa);
+DECL_PRE(termp_pp);
+DECL_PRE(termp_rs);
+DECL_PRE(termp_rv);
+DECL_PRE(termp_sm);
+DECL_PRE(termp_st);
+DECL_PRE(termp_sx);
+DECL_PRE(termp_sy);
+DECL_PRE(termp_ud);
+DECL_PRE(termp_ux);
+DECL_PRE(termp_va);
+DECL_PRE(termp_xr);
+
+DECL_POST(termp___);
+DECL_POST(termp_bl);
+DECL_POST(termp_bx);
+DECL_POST(termp_lb);
+
+const struct termact __termacts[MDOC_MAX] = {
+ { NULL, NULL }, /* \" */
+ { NULL, NULL }, /* Dd */
+ { NULL, NULL }, /* Dt */
+ { NULL, NULL }, /* Os */
+ { termp_sh_pre, termp_sh_post }, /* Sh */
+ { termp_ss_pre, termp_ss_post }, /* Ss */
+ { termp_pp_pre, NULL }, /* Pp */
+ { termp_d1_pre, termp_d1_post }, /* D1 */
+ { termp_d1_pre, termp_d1_post }, /* Dl */
+ { termp_bd_pre, termp_bd_post }, /* Bd */
+ { NULL, NULL }, /* Ed */
+ { NULL, termp_bl_post }, /* Bl */
+ { NULL, NULL }, /* El */
+ { termp_it_pre, termp_it_post }, /* It */
+ { NULL, NULL }, /* Ad */
+ { NULL, NULL }, /* An */
+ { termp_ar_pre, NULL }, /* Ar */
+ { termp_cd_pre, NULL }, /* Cd */
+ { termp_cm_pre, NULL }, /* Cm */
+ { NULL, NULL }, /* Dv */
+ { NULL, NULL }, /* Er */
+ { NULL, NULL }, /* Ev */
+ { termp_ex_pre, NULL }, /* Ex */
+ { termp_fa_pre, NULL }, /* Fa */
+ { termp_fd_pre, termp_fd_post }, /* Fd */
+ { termp_fl_pre, NULL }, /* Fl */
+ { termp_fn_pre, termp_fn_post }, /* Fn */
+ { termp_ft_pre, termp_ft_post }, /* Ft */
+ { termp_ic_pre, NULL }, /* Ic */
+ { termp_in_pre, termp_in_post }, /* In */
+ { NULL, NULL }, /* Li */
+ { termp_nd_pre, NULL }, /* Nd */
+ { termp_nm_pre, NULL }, /* Nm */
+ { termp_op_pre, termp_op_post }, /* Op */
+ { NULL, NULL }, /* Ot */
+ { termp_pa_pre, NULL }, /* Pa */
+ { termp_rv_pre, NULL }, /* Rv */
+ { termp_st_pre, NULL }, /* St */
+ { termp_va_pre, NULL }, /* Va */
+ { termp_vt_pre, termp_vt_post }, /* Vt */
+ { termp_xr_pre, NULL }, /* Xr */
+ { NULL, termp____post }, /* %A */
+ { NULL, termp____post }, /* %B */
+ { NULL, termp____post }, /* %D */
+ { NULL, termp____post }, /* %I */
+ { NULL, termp____post }, /* %J */
+ { NULL, termp____post }, /* %N */
+ { NULL, termp____post }, /* %O */
+ { NULL, termp____post }, /* %P */
+ { NULL, termp____post }, /* %R */
+ { termp__t_pre, termp__t_post }, /* %T */
+ { NULL, termp____post }, /* %V */
+ { NULL, NULL }, /* Ac */
+ { termp_aq_pre, termp_aq_post }, /* Ao */
+ { termp_aq_pre, termp_aq_post }, /* Aq */
+ { termp_at_pre, NULL }, /* At */
+ { NULL, NULL }, /* Bc */
+ { termp_bf_pre, NULL }, /* Bf */
+ { termp_bq_pre, termp_bq_post }, /* Bo */
+ { termp_bq_pre, termp_bq_post }, /* Bq */
+ { termp_bsx_pre, NULL }, /* Bsx */
+ { NULL, termp_bx_post }, /* Bx */
+ { NULL, NULL }, /* Db */
+ { NULL, NULL }, /* Dc */
+ { termp_dq_pre, termp_dq_post }, /* Do */
+ { termp_dq_pre, termp_dq_post }, /* Dq */
+ { NULL, NULL }, /* Ec */
+ { NULL, NULL }, /* Ef */
+ { termp_em_pre, NULL }, /* Em */
+ { NULL, NULL }, /* Eo */
+ { termp_fx_pre, NULL }, /* Fx */
+ { termp_ms_pre, NULL }, /* Ms */
+ { NULL, NULL }, /* No */
+ { termp_ns_pre, NULL }, /* Ns */
+ { termp_nx_pre, NULL }, /* Nx */
+ { termp_ox_pre, NULL }, /* Ox */
+ { NULL, NULL }, /* Pc */
+ { termp_pf_pre, termp_pf_post }, /* Pf */
+ { termp_pq_pre, termp_pq_post }, /* Po */
+ { termp_pq_pre, termp_pq_post }, /* Pq */
+ { NULL, NULL }, /* Qc */
+ { termp_sq_pre, termp_sq_post }, /* Ql */
+ { termp_qq_pre, termp_qq_post }, /* Qo */
+ { termp_qq_pre, termp_qq_post }, /* Qq */
+ { NULL, NULL }, /* Re */
+ { termp_rs_pre, NULL }, /* Rs */
+ { NULL, NULL }, /* Sc */
+ { termp_sq_pre, termp_sq_post }, /* So */
+ { termp_sq_pre, termp_sq_post }, /* Sq */
+ { termp_sm_pre, NULL }, /* Sm */
+ { termp_sx_pre, NULL }, /* Sx */
+ { termp_sy_pre, NULL }, /* Sy */
+ { NULL, NULL }, /* Tn */
+ { termp_ux_pre, NULL }, /* Ux */
+ { NULL, NULL }, /* Xc */
+ { NULL, NULL }, /* Xo */
+ { termp_fo_pre, termp_fo_post }, /* Fo */
+ { NULL, NULL }, /* Fc */
+ { termp_op_pre, termp_op_post }, /* Oo */
+ { NULL, NULL }, /* Oc */
+ { NULL, NULL }, /* Bk */
+ { NULL, NULL }, /* Ek */
+ { termp_bt_pre, NULL }, /* Bt */
+ { NULL, NULL }, /* Hf */
+ { NULL, NULL }, /* Fr */
+ { termp_ud_pre, NULL }, /* Ud */
+ { NULL, termp_lb_post }, /* lb */
+};
+
+const struct termact *termacts = __termacts;
+
+
+static size_t
+arg_width(const struct mdoc_argv *arg)
+{
+ size_t v;
+ int i, len;
+
+ assert(*arg->value);
+ if (0 == strcmp(*arg->value, "indent"))
+ return(INDENT);
+ if (0 == strcmp(*arg->value, "indent-two"))
+ return(INDENT * 2);
+
+ len = (int)strlen(*arg->value);
+ assert(len > 0);
+
+ for (i = 0; i < len - 1; i++)
+ if ( ! isdigit((u_char)(*arg->value)[i]))
+ break;
+
+ if (i == len - 1) {
+ if ('n' == (*arg->value)[len - 1]) {
+ v = (size_t)atoi(*arg->value);
+ return(v);
+ }
+
+ }
+ return(strlen(*arg->value) + 1);
+}
+
+
+static int
+arg_listtype(const struct mdoc_node *n)
+{
+ int i, len;
+
+ assert(MDOC_BLOCK == n->type);
+
+ len = n->args ? n->args->argc : 0;
+
+ for (i = 0; i < len; i++)
+ switch (n->args->argv[i].arg) {
+ case (MDOC_Bullet):
+ /* FALLTHROUGH */
+ case (MDOC_Dash):
+ /* FALLTHROUGH */
+ case (MDOC_Enum):
+ /* FALLTHROUGH */
+ case (MDOC_Hyphen):
+ /* FALLTHROUGH */
+ case (MDOC_Tag):
+ /* FALLTHROUGH */
+ case (MDOC_Inset):
+ /* FALLTHROUGH */
+ case (MDOC_Diag):
+ /* FALLTHROUGH */
+ case (MDOC_Item):
+ /* FALLTHROUGH */
+ case (MDOC_Ohang):
+ return(n->args->argv[i].arg);
+ default:
+ break;
+ }
+
+ errx(1, "list type not supported");
+ /* NOTREACHED */
+}
+
+
+static size_t
+arg_offset(const struct mdoc_argv *arg)
+{
+
+ /* TODO */
+ assert(*arg->value);
+ if (0 == strcmp(*arg->value, "indent"))
+ return(INDENT);
+ if (0 == strcmp(*arg->value, "indent-two"))
+ return(INDENT * 2);
+ return(strlen(*arg->value));
+}
+
+
+static int
+arg_hasattr(int arg, const struct mdoc_node *n)
+{
+
+ return(-1 != arg_getattr(arg, n));
+}
+
+
+static int
+arg_getattr(int arg, const struct mdoc_node *n)
+{
+ int i;
+
+ if (NULL == n->args)
+ return(-1);
+ for (i = 0; i < (int)n->args->argc; i++)
+ if (n->args->argv[i].arg == arg)
+ return(i);
+ return(-1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_dq_pre(DECL_ARGS)
+{
+
+ if (MDOC_BODY != node->type)
+ return(1);
+
+ word(p, "``");
+ p->flags |= TERMP_NOSPACE;
+ return(1);
+}
+
+
+/* ARGSUSED */
+static void
+termp_dq_post(DECL_ARGS)
+{
+
+ if (MDOC_BODY != node->type)
+ return;
+
+ p->flags |= TERMP_NOSPACE;
+ word(p, "''");
+}
+
+
+/* ARGSUSED */
+static int
+termp_it_pre_block(DECL_ARGS)
+{
+
+ newln(p);
+ if ( ! arg_hasattr(MDOC_Compact, node->parent->parent))
+ if (node->prev || node->parent->parent->prev)
+ vspace(p);
+
+ return(1);
+}
+
+
+/* ARGSUSED */
+static int
+termp_it_pre(DECL_ARGS)
+{
+ const struct mdoc_node *bl;
+ char buf[7];
+ int i, type;
+ size_t width, offset;
+
+ if (MDOC_BLOCK == node->type)
+ return(termp_it_pre_block(p, pair, meta, node));
+
+ /* Get ptr to list block, type, etc. */
+
+ bl = node->parent->parent->parent;
+ type = arg_listtype(bl);
+
+ /* Save parent attributes. */
+
+ pair->offset = p->offset;
+ pair->rmargin = p->rmargin;
+ pair->flag = p->flags;
+
+ /* Get list width and offset. */
+
+ i = arg_getattr(MDOC_Width, bl);
+ width = i >= 0 ? arg_width(&bl->args->argv[i]) : 0;
+
+ i = arg_getattr(MDOC_Offset, bl);
+ offset = i >= 0 ? arg_offset(&bl->args->argv[i]) : 0;
+
+ /*
+ * List-type can override the width in the case of fixed-head
+ * values (bullet, dash/hyphen, enum). Tags need a non-zero
+ * offset.
+ */
+
+ switch (type) {
+ case (MDOC_Bullet):
+ /* FALLTHROUGH */
+ case (MDOC_Dash):
+ /* FALLTHROUGH */
+ case (MDOC_Enum):
+ /* FALLTHROUGH */
+ case (MDOC_Hyphen):
+ width = width > 4 ? width : 4;
+ break;
+ case (MDOC_Tag):
+ if (width)
+ break;
+ errx(1, "need non-zero %s for list type",
+ mdoc_argnames[MDOC_Width]);
+ default:
+ break;
+ }
+
+ /*
+ * Whitespace control. Inset bodies need an initial space.
+ */
+
+ switch (type) {
+ case (MDOC_Diag):
+ /* FALLTHROUGH */
+ case (MDOC_Inset):
+ if (MDOC_BODY == node->type)
+ p->flags &= ~TERMP_NOSPACE;
+ else
+ p->flags |= TERMP_NOSPACE;
+ break;
+ default:
+ p->flags |= TERMP_NOSPACE;
git.ckatri.com / mandoc.git / blobdiff