little_helpers/tikz/sketch-0.2.161/opts.h

   1 /* opts.h
   2    Copyright (C) 2005,2006,2007,2008 Eugene K. Ressler, Jr.
   3
   4 This file is part of Sketch, a small, simple system for making
   5 3d drawings with LaTeX and the PSTricks or TikZ package.
   6
   7 Sketch is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 Sketch is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Sketch; see the file COPYING.txt.  If not, see
  19 http://www.gnu.org/copyleft */
  20
  21 #ifndef __OPTS_H
  22 #define __OPTS_H
  23
  24 #include <stdio.h>
  25 #include "dynarray.h"
  26 #include "error.h"
  27
  28 #define OPT_NONE 0x00
  29
  30 // type flags
  31 #define OPT_INTERNAL 0x01
  32 #define OPT_LINE     0x02
  33 #define OPT_POLYGON  0x04
  34
  35 // default class flags
  36 #define OPT_LINE_STYLE  0x08
  37 #define OPT_FILL_STYLE  0x10
  38 #define OPT_FILL_COLOR  0x20
  39 #define OPT_DEFAULTS (OPT_LINE_STYLE|OPT_FILL_STYLE|OPT_FILL_COLOR)
  40
  41 // key doesn't have type information; use val
  42 #define OPT_TYPE_IN_VAL 0x40
  43
  44 // sufficient to emit value without key
  45 #define OPT_EMIT_VAL            0x80
  46
  47 // some dynamic array types
  48 typedef struct opt_t
  49 {
  50   char *key, *val;
  51 }
  52 OPT;
  53
  54 typedef struct opt_list_t
  55 {
  56   DYNAMIC_ARRAY_FIELDS (OPT, elt, n_elts);
  57 }
  58 OPT_LIST;
  59
  60 DECLARE_DYNAMIC_ARRAY_PROTOS (OPT_LIST, OPT, opt_list, elt, n_elts)
  61
  62 typedef struct opts_t
  63 {
  64   // DEBUG: could cache list data here for speed
  65   OPT_LIST list[1];
  66 }
  67 OPTS;
  68
  69 void init_opts (OPTS * opts);
  70 void setup_opts (OPTS * opts, char *opt_str, SRC_LINE line);
  71 OPTS *raw_opts (void);
  72 OPTS *new_opts (char *opts_str, SRC_LINE line);
  73 void clear_opts (OPTS * opts);
  74 char *opt_val (OPTS * opts, char *opt);
  75 int bool_opt_p (OPTS * opts, char *opt, int default_p);
  76 int opt_type (OPT * opt, int default_type, int lang);
  77 void add_no_edges_default_opt (OPTS ** opts_ptr, int lang);
  78 void add_solid_white_default_opt (OPTS ** opts_ptr, int lang);
  79 // selective copy for splitting option lists by type
  80 OPTS *copy_opts (OPTS * opts, int type_mask, int lang);
  81 OPTS *cat_opts (OPTS * dst, OPTS * src);
  82 // selective copy for splitting out line options and modifying arrows
  83 OPTS *copy_line_opts (OPTS * opts, int first_p, int last_p, int lang);
  84 void emit_opts_raw (FILE * f, OPTS * opts, int lang);
  85 void emit_opts (FILE * f, OPTS * opts, int lang);
  86 void emit_opts_with_exceptions (FILE * f, OPTS * opts, char ** exceptions, int lang);
  87 void check_opts (OPTS * opts,
  88                  int allowed, char *allowed_msg, int lang,
  89                  SRC_LINE line);
  90
  91 // slice src into dest using Perl/Python conventions
  92 char *str_slice (char *dst, int dst_size, char *src, int beg, int end);
  93 #define SLICE_TO_END  ((int)(~0u >> 1))
  94
  95 // find last occurance of aachar in set in src; return index or -1 if none
  96 int str_last_occurance (char *src, char *set);
  97
  98 // strtok with a state variable instead of static
  99 char *istrtok (int *p, char *s, char sep);
 100
 101 #endif