+#include "term.h"
+
+#define INDENT 6
+
+/*
+ * Performs actions on nodes of the abstract syntax tree. Both pre- and
+ * post-fix operations are defined here.
+ */
+
+/* FIXME: indent/tab. */
+/* 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_NMAX 18
+
+/*
+ * 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).
+ */
+
+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 */
+};
+
+static int arg_hasattr(int, size_t,
+ const struct mdoc_arg *);
+static int arg_getattr(int, size_t,
+ const struct mdoc_arg *);
+static size_t arg_offset(const struct mdoc_arg *);
+static size_t arg_width(const struct mdoc_arg *);
+
+/*
+ * 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_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_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_bx);
+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_in);
+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_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_bl);
+
+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 */
+ { NULL, NULL }, /* 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, NULL }, /* 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, 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 */
+ { 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 */
+ { termp_bx_pre, NULL }, /* 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 */
+ { NULL, 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 */
+};
+
+const struct termact *termacts = __termacts;
+
+
+static size_t
+arg_width(const struct mdoc_arg *arg)
+{
+ size_t len, i, v;
+
+ assert(*arg->value);
+ if (0 == strcmp(*arg->value, "indent"))
+ return(INDENT);
+ if (0 == strcmp(*arg->value, "indent-two"))
+ return(INDENT * 2);
+
+ len = strlen(*arg->value);
+ assert(len > 0);
+
+ for (i = 0; i < len - 1; i++)
+ if ( ! isdigit((int)(*arg->value)[i]))
+ break;
+
+ if (i == len - 1) {
+ if ('n' == (*arg->value)[len - 1]) {
+ v = (size_t)atoi(*arg->value);
+ return(v);
+ }