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Add very many enhancements by J. David Bryan.

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This commit is contained in:
Eric Smith
2016-06-23 20:39:37 -06:00
parent a355304f3d
commit 10c4f6846c
24 changed files with 1326 additions and 120 deletions
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65
parser.y
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@@ -19,15 +19,23 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
*/
*
* 2009-03-13 [JDB] Add support for blank pages, overlay images, color
* mapping, color-key masking, and push/pop of input
* contexts.
*/
%{
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "semantics.h"
extern int yylex (void);
%}
%error-verbose
%union {
int integer;
char character;
@@ -36,6 +44,9 @@
page_size_t size;
range_t range;
page_label_t page_label;
overlay_t overlay;
rgb_t rgb;
rgb_range_t rgb_range;
}
%token <integer> INTEGER
@@ -63,9 +74,13 @@
%token CROP
%token SIZE
%token RESOLUTION
%token BLANK
%token INPUT
%token TRANSPARENT
%token COLORMAP
%token LABEL
%token OVERLAY
%token PAGE
%token PAGES
%token BOOKMARK
@@ -89,6 +104,12 @@
%type <size> page_size
%type <rgb> rgb
%type <rgb_range> rgb_range
%type <rgb_range> gray_range
%type <rgb_range> color_range
%%
statements:
@@ -157,8 +178,21 @@ size_clause:
resolution_clause:
RESOLUTION FLOAT unit ;
rgb_range:
'(' range range range ')' { $$.red = $2; $$.green = $3; $$.blue = $4; }
gray_range:
'(' range ')' { $$.red = $2; $$.green = $2; $$.blue = $2; } ;
color_range:
rgb_range
| gray_range;
transparency_clause:
TRANSPARENT color_range ';' { input_set_transparency ($2); } ;
modifier_clause:
rotate_clause | crop_clause | size_clause | resolution_clause;
rotate_clause | crop_clause | size_clause | resolution_clause | transparency_clause;
modifier_clauses:
modifier_clause
@@ -175,12 +209,16 @@ part_clause:
modifier_clause_list ';'
{ input_set_modifier_context (INPUT_MODIFIER_ALL); } ;
blank_page_clause:
BLANK { input_set_file (NULL); } size_clause ;
input_clause:
input_file_clause
| image_clause
| images_clause
| part_clause
| modifier_clause
| blank_page_clause
| input_clause_list ;
input_clauses:
@@ -188,7 +226,8 @@ input_clauses:
| input_clauses input_clause ;
input_clause_list:
'{' input_clauses '}' ;
'{' { input_push_context (); }
input_clauses '}' { input_pop_context (); } ;
input_statement:
INPUT input_clauses ;
@@ -218,12 +257,23 @@ label_clause:
| LABEL CHARACTER ';' { page_label_t label = { NULL, $2 }; output_set_page_label (label); }
| LABEL STRING ',' CHARACTER ';' { page_label_t label = { $2, $4 }; output_set_page_label (label); } ;
overlay_clause_list:
/* empty */
| '{' overlay_clauses '}' ;
overlay_clauses:
overlay_clause
| overlay_clauses overlay_clause ;
overlay_clause:
OVERLAY length ',' length ';' { overlay_t overlay = { $2, $4 }; output_overlay (overlay); } ;
page_ranges:
range { output_pages ($1); }
| page_ranges ',' range { output_pages ($3); } ;
page_clause:
PAGE INTEGER ';' { range_t range = { $2, $2 }; output_pages (range); } ;
PAGE INTEGER { range_t range = { $2, $2 }; output_pages (range); } overlay_clause_list ';' ;
pages_clause:
PAGES page_ranges ';' ;
@@ -240,8 +290,15 @@ bookmark_clause:
bookmark_name_list
output_clause_list ';' { bookmark_level--; output_pop_context (); } ;
rgb:
'(' INTEGER INTEGER INTEGER ')' { $$.red = $2; $$.green = $3; $$.blue = $4; } ;
colormap_clause:
COLORMAP rgb ',' rgb ';' { output_set_colormap ($2, $4); } ;
output_clause:
output_file_clause
| colormap_clause
| label_clause
| page_clause | pages_clause
| bookmark_clause