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Eric Smith
2001-12-28 04:55:47 +00:00
parent 707b47d8b6
commit db1c40d8be
2 changed files with 25 additions and 14 deletions
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37
parser.y
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@@ -12,6 +12,8 @@
%token <fp> FLOAT
%token <string> STRING
%token ELIPSIS
%token EVEN
%token ODD
%token ALL
@@ -32,16 +34,16 @@
%%
statements: statement | statements statement;
statements: statement | statements statement ;
statement: input_statement | output_statement;
statement: input_statement | output_statement ;
range: INTEGER ".." INTEGER
| INTEGER;
range: INTEGER ELIPSIS INTEGER
| INTEGER ;
ranges: range
| ranges ',' range;
| ranges ',' range ;
file_clause:
@@ -60,23 +62,26 @@ size_clause:
SIZE FLOAT ',' FLOAT ';' ;
part:
EVEN | ODD | ALL;
EVEN | ODD | ALL ;
part_clause:
part ';' ;
part input_clause ;
input_clause:
part_clause
| file_clause | image_clause | rotate_clause
| crop_clause | size_clause;
| crop_clause | size_clause
| input_clause_list ;
input_clauses:
input_clause
| input_clauses input_clause;
| input_clauses input_clause ;
input_clause_list:
'{' input_clauses '}' ;
input_statement:
INPUT '{' input_clauses '}' ;
INPUT input_clause ;
page_clause:
PAGE ranges ';'
@@ -86,12 +91,16 @@ bookmark_clause:
BOOKMARK STRING ';' ;
output_clause:
page_clause | bookmark_clause;
page_clause | bookmark_clause
| output_clause_list ;
output_clauses:
output_clause
| output_clauses output_clause;
| output_clauses output_clause ;
output_clause_list:
'{' output_clauses '}' ;
output_statement:
OUTPUT '{' output_clauses '}' ;
OUTPUT output_clause ;

2
scanner.l
View File

@@ -11,6 +11,8 @@ alpha [a-zA-Z]
%%
\.\. { return (ELIPSIS); }
{digit}+ { yylval.integer = atoi (yytext); return (INTEGER); }
all { return (ALL); }