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authorIngo Schwarze <schwarze@cvs.openbsd.org>2011-03-12 19:04:03 +0000
committerIngo Schwarze <schwarze@cvs.openbsd.org>2011-03-12 19:04:03 +0000
commit872b6ee7400edb775c362a39717e7942528eb707 (patch)
tree99903d255fb5924b4d19de8861964f4a93f6afc0 /gnu/usr.bin/groff/pic/pic.y
parent30c1ecbeb90c0d739a2f8dd74d15e05b79aba36e (diff)
Replaced by mandoc(1) for base and xenocara purposes,
and comes with 4.9 ports. ok deraadt@
Diffstat (limited to 'gnu/usr.bin/groff/pic/pic.y')
-rw-r--r--gnu/usr.bin/groff/pic/pic.y1784
1 files changed, 0 insertions, 1784 deletions
diff --git a/gnu/usr.bin/groff/pic/pic.y b/gnu/usr.bin/groff/pic/pic.y
deleted file mode 100644
index d0420acd793..00000000000
--- a/gnu/usr.bin/groff/pic/pic.y
+++ /dev/null
@@ -1,1784 +0,0 @@
-/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-%{
-#include "pic.h"
-#include "ptable.h"
-#include "object.h"
-
-extern int delim_flag;
-extern void do_copy(const char *);
-extern void copy_rest_thru(const char *, const char *);
-extern void copy_file_thru(const char *, const char *, const char *);
-extern void push_body(const char *);
-extern void do_for(char *var, double from, double to,
- int by_is_multiplicative, double by, char *body);
-extern void do_lookahead();
-
-#ifndef HAVE_FMOD
-extern "C" {
- double fmod(double, double);
-}
-#endif
-
-#undef rand
-extern "C" {
- int rand();
-}
-
-/* Maximum number of characters produced by printf("%g") */
-#define GDIGITS 14
-
-int yylex();
-void yyerror(const char *);
-
-void reset(const char *nm);
-void reset_all();
-
-place *lookup_label(const char *);
-void define_label(const char *label, const place *pl);
-
-direction current_direction;
-position current_position;
-
-implement_ptable(place)
-
-PTABLE(place) top_table;
-
-PTABLE(place) *current_table = &top_table;
-saved_state *current_saved_state = 0;
-
-object_list olist;
-
-const char *ordinal_postfix(int n);
-const char *object_type_name(object_type type);
-char *format_number(const char *form, double n);
-char *do_sprintf(const char *form, const double *v, int nv);
-
-%}
-
-
-%union {
- char *str;
- int n;
- double x;
- struct { double x, y; } pair;
- struct { double x; char *body; } if_data;
- struct { char *str; const char *filename; int lineno; } lstr;
- struct { double *v; int nv; int maxv; } dv;
- struct { double val; int is_multiplicative; } by;
- place pl;
- object *obj;
- corner crn;
- path *pth;
- object_spec *spec;
- saved_state *pstate;
- graphics_state state;
- object_type obtype;
-}
-
-%token <str> LABEL
-%token <str> VARIABLE
-%token <x> NUMBER
-%token <lstr> TEXT
-%token <lstr> COMMAND_LINE
-%token <str> DELIMITED
-%token <n> ORDINAL
-%token TH
-%token LEFT_ARROW_HEAD
-%token RIGHT_ARROW_HEAD
-%token DOUBLE_ARROW_HEAD
-%token LAST
-%token UP
-%token DOWN
-%token LEFT
-%token RIGHT
-%token BOX
-%token CIRCLE
-%token ELLIPSE
-%token ARC
-%token LINE
-%token ARROW
-%token MOVE
-%token SPLINE
-%token HEIGHT
-%token RADIUS
-%token WIDTH
-%token DIAMETER
-%token UP
-%token DOWN
-%token RIGHT
-%token LEFT
-%token FROM
-%token TO
-%token AT
-%token WITH
-%token BY
-%token THEN
-%token DOTTED
-%token DASHED
-%token CHOP
-%token SAME
-%token INVISIBLE
-%token LJUST
-%token RJUST
-%token ABOVE
-%token BELOW
-%token OF
-%token THE
-%token WAY
-%token BETWEEN
-%token AND
-%token HERE
-%token DOT_N
-%token DOT_E
-%token DOT_W
-%token DOT_S
-%token DOT_NE
-%token DOT_SE
-%token DOT_NW
-%token DOT_SW
-%token DOT_C
-%token DOT_START
-%token DOT_END
-%token DOT_X
-%token DOT_Y
-%token DOT_HT
-%token DOT_WID
-%token DOT_RAD
-%token SIN
-%token COS
-%token ATAN2
-%token LOG
-%token EXP
-%token SQRT
-%token K_MAX
-%token K_MIN
-%token INT
-%token RAND
-%token COPY
-%token THRU
-%token TOP
-%token BOTTOM
-%token UPPER
-%token LOWER
-%token SH
-%token PRINT
-%token CW
-%token CCW
-%token FOR
-%token DO
-%token IF
-%token ELSE
-%token ANDAND
-%token OROR
-%token NOTEQUAL
-%token EQUALEQUAL
-%token LESSEQUAL
-%token GREATEREQUAL
-%token LEFT_CORNER
-%token RIGHT_CORNER
-%token CENTER
-%token END
-%token START
-%token RESET
-%token UNTIL
-%token PLOT
-%token THICKNESS
-%token FILL
-%token ALIGNED
-%token SPRINTF
-%token COMMAND
-
-%token DEFINE
-%token UNDEF
-
-/* this ensures that plot 17 "%g" parses as (plot 17 "%g") */
-%left PLOT
-%left TEXT SPRINTF
-
-/* give text adjustments higher precedence than TEXT, so that
-box "foo" above ljust == box ("foo" above ljust)
-*/
-
-%left LJUST RJUST ABOVE BELOW
-
-%left LEFT RIGHT
-/* Give attributes that take an optional expression a higher
-precedence than left and right, so that eg `line chop left'
-parses properly. */
-%left CHOP DASHED DOTTED UP DOWN FILL
-%left LABEL
-
-%left VARIABLE NUMBER '(' SIN COS ATAN2 LOG EXP SQRT K_MAX K_MIN INT RAND LAST
-%left ORDINAL HERE '`'
-
-/* these need to be lower than '-' */
-%left HEIGHT RADIUS WIDTH DIAMETER FROM TO AT THICKNESS
-
-/* these must have higher precedence than CHOP so that `label %prec CHOP'
-works */
-%left DOT_N DOT_E DOT_W DOT_S DOT_NE DOT_SE DOT_NW DOT_SW DOT_C
-%left DOT_START DOT_END TOP BOTTOM LEFT_CORNER RIGHT_CORNER
-%left UPPER LOWER CENTER START END
-
-%left ','
-%left OROR
-%left ANDAND
-%left EQUALEQUAL NOTEQUAL
-%left '<' '>' LESSEQUAL GREATEREQUAL
-
-%left BETWEEN OF
-%left AND
-
-%left '+' '-'
-%left '*' '/' '%'
-%right '!'
-%right '^'
-
-%type <x> expr any_expr text_expr
-%type <by> optional_by
-%type <pair> expr_pair position_not_place
-%type <if_data> simple_if
-%type <obj> nth_primitive
-%type <crn> corner
-%type <pth> path label_path relative_path
-%type <pl> place label element element_list middle_element_list
-%type <spec> object_spec
-%type <pair> position
-%type <obtype> object_type
-%type <n> optional_ordinal_last ordinal
-%type <str> until
-%type <dv> sprintf_args
-%type <lstr> text print_args print_arg
-
-%%
-
-top:
- optional_separator
- | element_list
- {
- if (olist.head)
- print_picture(olist.head);
- }
- ;
-
-
-element_list:
- optional_separator middle_element_list optional_separator
- { $$ = $2; }
- ;
-
-middle_element_list:
- element
- { $$ = $1; }
- | middle_element_list separator element
- { $$ = $1; }
- ;
-
-optional_separator:
- /* empty */
- | separator
- ;
-
-separator:
- ';'
- | separator ';'
- ;
-
-placeless_element:
- VARIABLE '=' any_expr
- {
- define_variable($1, $3);
- a_delete $1;
- }
- | VARIABLE ':' '=' any_expr
- {
- place *p = lookup_label($1);
- if (!p) {
- lex_error("variable `%1' not defined", $1);
- YYABORT;
- }
- p->obj = 0;
- p->x = $4;
- p->y = 0.0;
- a_delete $1;
- }
- | UP
- { current_direction = UP_DIRECTION; }
- | DOWN
- { current_direction = DOWN_DIRECTION; }
- | LEFT
- { current_direction = LEFT_DIRECTION; }
- | RIGHT
- { current_direction = RIGHT_DIRECTION; }
- | COMMAND_LINE
- {
- olist.append(make_command_object($1.str, $1.filename,
- $1.lineno));
- }
- | COMMAND print_args
- {
- olist.append(make_command_object($2.str, $2.filename,
- $2.lineno));
- }
- | PRINT print_args
- {
- fprintf(stderr, "%s\n", $2.str);
- a_delete $2.str;
- fflush(stderr);
- }
- | SH
- { delim_flag = 1; }
- DELIMITED
- {
- delim_flag = 0;
- if (safer_flag)
- lex_error("unsafe to run command `%1'", $3);
- else
- system($3);
- a_delete $3;
- }
- | COPY TEXT
- {
- if (yychar < 0)
- do_lookahead();
- do_copy($2.str);
- // do not delete the filename
- }
- | COPY TEXT THRU
- { delim_flag = 2; }
- DELIMITED
- { delim_flag = 0; }
- until
- {
- if (yychar < 0)
- do_lookahead();
- copy_file_thru($2.str, $5, $7);
- // do not delete the filename
- a_delete $5;
- a_delete $7;
- }
- | COPY THRU
- { delim_flag = 2; }
- DELIMITED
- { delim_flag = 0; }
- until
- {
- if (yychar < 0)
- do_lookahead();
- copy_rest_thru($4, $6);
- a_delete $4;
- a_delete $6;
- }
- | FOR VARIABLE '=' expr TO expr optional_by DO
- { delim_flag = 1; }
- DELIMITED
- {
- delim_flag = 0;
- if (yychar < 0)
- do_lookahead();
- do_for($2, $4, $6, $7.is_multiplicative, $7.val, $10);
- }
- | simple_if
- {
- if (yychar < 0)
- do_lookahead();
- if ($1.x != 0.0)
- push_body($1.body);
- a_delete $1.body;
- }
- | simple_if ELSE
- { delim_flag = 1; }
- DELIMITED
- {
- delim_flag = 0;
- if (yychar < 0)
- do_lookahead();
- if ($1.x != 0.0)
- push_body($1.body);
- else
- push_body($4);
- a_delete $1.body;
- a_delete $4;
- }
- | reset_variables
- | RESET
- { define_variable("scale", 1.0); }
- ;
-
-reset_variables:
- RESET VARIABLE
- { reset($2); a_delete $2; }
- | reset_variables VARIABLE
- { reset($2); a_delete $2; }
- | reset_variables ',' VARIABLE
- { reset($3); a_delete $3; }
- ;
-
-print_args:
- print_arg
- { $$ = $1; }
- | print_args print_arg
- {
- $$.str = new char[strlen($1.str) + strlen($2.str) + 1];
- strcpy($$.str, $1.str);
- strcat($$.str, $2.str);
- a_delete $1.str;
- a_delete $2.str;
- if ($1.filename) {
- $$.filename = $1.filename;
- $$.lineno = $1.lineno;
- }
- else if ($2.filename) {
- $$.filename = $2.filename;
- $$.lineno = $2.lineno;
- }
- }
- ;
-
-print_arg:
- expr %prec ','
- {
- $$.str = new char[GDIGITS + 1];
- sprintf($$.str, "%g", $1);
- $$.filename = 0;
- $$.lineno = 0;
- }
- | text
- { $$ = $1; }
- | position %prec ','
- {
- $$.str = new char[GDIGITS + 2 + GDIGITS + 1];
- sprintf($$.str, "%g, %g", $1.x, $1.y);
- $$.filename = 0;
- $$.lineno = 0;
- }
-
-simple_if:
- IF any_expr THEN
- { delim_flag = 1; }
- DELIMITED
- { delim_flag = 0; $$.x = $2; $$.body = $5; }
- ;
-
-until:
- /* empty */
- { $$ = 0; }
- | UNTIL TEXT
- { $$ = $2.str; }
- ;
-
-any_expr:
- expr
- { $$ = $1; }
- | text_expr
- { $$ = $1; }
- ;
-
-text_expr:
- text EQUALEQUAL text
- {
- $$ = strcmp($1.str, $3.str) == 0;
- a_delete $1.str;
- a_delete $3.str;
- }
- | text NOTEQUAL text
- {
- $$ = strcmp($1.str, $3.str) != 0;
- a_delete $1.str;
- a_delete $3.str;
- }
- | text_expr ANDAND text_expr
- { $$ = ($1 != 0.0 && $3 != 0.0); }
- | text_expr ANDAND expr
- { $$ = ($1 != 0.0 && $3 != 0.0); }
- | expr ANDAND text_expr
- { $$ = ($1 != 0.0 && $3 != 0.0); }
- | text_expr OROR text_expr
- { $$ = ($1 != 0.0 || $3 != 0.0); }
- | text_expr OROR expr
- { $$ = ($1 != 0.0 || $3 != 0.0); }
- | expr OROR text_expr
- { $$ = ($1 != 0.0 || $3 != 0.0); }
- | '!' text_expr
- { $$ = ($2 == 0.0); }
- ;
-
-
-optional_by:
- /* empty */
- { $$.val = 1.0; $$.is_multiplicative = 0; }
- | BY expr
- { $$.val = $2; $$.is_multiplicative = 0; }
- | BY '*' expr
- { $$.val = $3; $$.is_multiplicative = 1; }
- ;
-
-element:
- object_spec
- {
- $$.obj = $1->make_object(&current_position,
- &current_direction);
- if ($$.obj == 0)
- YYABORT;
- delete $1;
- if ($$.obj)
- olist.append($$.obj);
- else {
- $$.x = current_position.x;
- $$.y = current_position.y;
- }
- }
- | LABEL ':' optional_separator element
- { $$ = $4; define_label($1, & $$); a_delete $1; }
- | LABEL ':' optional_separator position_not_place
- {
- $$.obj = 0;
- $$.x = $4.x;
- $$.y = $4.y;
- define_label($1, & $$);
- a_delete $1;
- }
- | LABEL ':' optional_separator place
- {
- $$ = $4;
- define_label($1, & $$);
- a_delete $1;
- }
- | '{'
- {
- $<state>$.x = current_position.x;
- $<state>$.y = current_position.y;
- $<state>$.dir = current_direction;
- }
- element_list '}'
- {
- current_position.x = $<state>2.x;
- current_position.y = $<state>2.y;
- current_direction = $<state>2.dir;
- }
- optional_element
- {
- $$ = $3;
- }
- | placeless_element
- {
- $$.obj = 0;
- $$.x = current_position.x;
- $$.y = current_position.y;
- }
- ;
-
-optional_element:
- /* empty */
- {}
- | element
- {}
- ;
-
-object_spec:
- BOX
- {
- $$ = new object_spec(BOX_OBJECT);
- }
- | CIRCLE
- {
- $$ = new object_spec(CIRCLE_OBJECT);
- }
- | ELLIPSE
- {
- $$ = new object_spec(ELLIPSE_OBJECT);
- }
- | ARC
- {
- $$ = new object_spec(ARC_OBJECT);
- $$->dir = current_direction;
- }
- | LINE
- {
- $$ = new object_spec(LINE_OBJECT);
- lookup_variable("lineht", & $$->segment_height);
- lookup_variable("linewid", & $$->segment_width);
- $$->dir = current_direction;
- }
- | ARROW
- {
- $$ = new object_spec(ARROW_OBJECT);
- lookup_variable("lineht", & $$->segment_height);
- lookup_variable("linewid", & $$->segment_width);
- $$->dir = current_direction;
- }
- | MOVE
- {
- $$ = new object_spec(MOVE_OBJECT);
- lookup_variable("moveht", & $$->segment_height);
- lookup_variable("movewid", & $$->segment_width);
- $$->dir = current_direction;
- }
- | SPLINE
- {
- $$ = new object_spec(SPLINE_OBJECT);
- lookup_variable("lineht", & $$->segment_height);
- lookup_variable("linewid", & $$->segment_width);
- $$->dir = current_direction;
- }
- | text %prec TEXT
- {
- $$ = new object_spec(TEXT_OBJECT);
- $$->text = new text_item($1.str, $1.filename, $1.lineno);
- }
- | PLOT expr
- {
- $$ = new object_spec(TEXT_OBJECT);
- $$->text = new text_item(format_number(0, $2), 0, -1);
- }
- | PLOT expr text
- {
- $$ = new object_spec(TEXT_OBJECT);
- $$->text = new text_item(format_number($3.str, $2),
- $3.filename, $3.lineno);
- a_delete $3.str;
- }
- | '['
- {
- saved_state *p = new saved_state;
- $<pstate>$ = p;
- p->x = current_position.x;
- p->y = current_position.y;
- p->dir = current_direction;
- p->tbl = current_table;
- p->prev = current_saved_state;
- current_position.x = 0.0;
- current_position.y = 0.0;
- current_table = new PTABLE(place);
- current_saved_state = p;
- olist.append(make_mark_object());
- }
- element_list ']'
- {
- current_position.x = $<pstate>2->x;
- current_position.y = $<pstate>2->y;
- current_direction = $<pstate>2->dir;
- $$ = new object_spec(BLOCK_OBJECT);
- olist.wrap_up_block(& $$->oblist);
- $$->tbl = current_table;
- current_table = $<pstate>2->tbl;
- current_saved_state = $<pstate>2->prev;
- delete $<pstate>2;
- }
- | object_spec HEIGHT expr
- {
- $$ = $1;
- $$->height = $3;
- $$->flags |= HAS_HEIGHT;
- }
- | object_spec RADIUS expr
- {
- $$ = $1;
- $$->radius = $3;
- $$->flags |= HAS_RADIUS;
- }
- | object_spec WIDTH expr
- {
- $$ = $1;
- $$->width = $3;
- $$->flags |= HAS_WIDTH;
- }
- | object_spec DIAMETER expr
- {
- $$ = $1;
- $$->radius = $3/2.0;
- $$->flags |= HAS_RADIUS;
- }
- | object_spec expr %prec HEIGHT
- {
- $$ = $1;
- $$->flags |= HAS_SEGMENT;
- switch ($$->dir) {
- case UP_DIRECTION:
- $$->segment_pos.y += $2;
- break;
- case DOWN_DIRECTION:
- $$->segment_pos.y -= $2;
- break;
- case RIGHT_DIRECTION:
- $$->segment_pos.x += $2;
- break;
- case LEFT_DIRECTION:
- $$->segment_pos.x -= $2;
- break;
- }
- }
- | object_spec UP
- {
- $$ = $1;
- $$->dir = UP_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.y += $$->segment_height;
- }
- | object_spec UP expr
- {
- $$ = $1;
- $$->dir = UP_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.y += $3;
- }
- | object_spec DOWN
- {
- $$ = $1;
- $$->dir = DOWN_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.y -= $$->segment_height;
- }
- | object_spec DOWN expr
- {
- $$ = $1;
- $$->dir = DOWN_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.y -= $3;
- }
- | object_spec RIGHT
- {
- $$ = $1;
- $$->dir = RIGHT_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.x += $$->segment_width;
- }
- | object_spec RIGHT expr
- {
- $$ = $1;
- $$->dir = RIGHT_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.x += $3;
- }
- | object_spec LEFT
- {
- $$ = $1;
- $$->dir = LEFT_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.x -= $$->segment_width;
- }
- | object_spec LEFT expr
- {
- $$ = $1;
- $$->dir = LEFT_DIRECTION;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.x -= $3;
- }
- | object_spec FROM position
- {
- $$ = $1;
- $$->flags |= HAS_FROM;
- $$->from.x = $3.x;
- $$->from.y = $3.y;
- }
- | object_spec TO position
- {
- $$ = $1;
- if ($$->flags & HAS_SEGMENT)
- $$->segment_list = new segment($$->segment_pos,
- $$->segment_is_absolute,
- $$->segment_list);
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.x = $3.x;
- $$->segment_pos.y = $3.y;
- $$->segment_is_absolute = 1;
- $$->flags |= HAS_TO;
- $$->to.x = $3.x;
- $$->to.y = $3.y;
- }
- | object_spec AT position
- {
- $$ = $1;
- $$->flags |= HAS_AT;
- $$->at.x = $3.x;
- $$->at.y = $3.y;
- if ($$->type != ARC_OBJECT) {
- $$->flags |= HAS_FROM;
- $$->from.x = $3.x;
- $$->from.y = $3.y;
- }
- }
- | object_spec WITH path
- {
- $$ = $1;
- $$->flags |= HAS_WITH;
- $$->with = $3;
- }
- | object_spec BY expr_pair
- {
- $$ = $1;
- $$->flags |= HAS_SEGMENT;
- $$->segment_pos.x += $3.x;
- $$->segment_pos.y += $3.y;
- }
- | object_spec THEN
- {
- $$ = $1;
- if ($$->flags & HAS_SEGMENT) {
- $$->segment_list = new segment($$->segment_pos,
- $$->segment_is_absolute,
- $$->segment_list);
- $$->flags &= ~HAS_SEGMENT;
- $$->segment_pos.x = $$->segment_pos.y = 0.0;
- $$->segment_is_absolute = 0;
- }
- }
- | object_spec DOTTED
- {
- $$ = $1;
- $$->flags |= IS_DOTTED;
- lookup_variable("dashwid", & $$->dash_width);
- }
- | object_spec DOTTED expr
- {
- $$ = $1;
- $$->flags |= IS_DOTTED;
- $$->dash_width = $3;
- }
- | object_spec DASHED
- {
- $$ = $1;
- $$->flags |= IS_DASHED;
- lookup_variable("dashwid", & $$->dash_width);
- }
- | object_spec DASHED expr
- {
- $$ = $1;
- $$->flags |= IS_DASHED;
- $$->dash_width = $3;
- }
- | object_spec FILL
- {
- $$ = $1;
- $$->flags |= IS_DEFAULT_FILLED;
- }
- | object_spec FILL expr
- {
- $$ = $1;
- $$->flags |= IS_FILLED;
- $$->fill = $3;
- }
- | object_spec CHOP
- {
- $$ = $1;
- // line chop chop means line chop 0 chop 0
- if ($$->flags & IS_DEFAULT_CHOPPED) {
- $$->flags |= IS_CHOPPED;
- $$->flags &= ~IS_DEFAULT_CHOPPED;
- $$->start_chop = $$->end_chop = 0.0;
- }
- else if ($$->flags & IS_CHOPPED) {
- $$->end_chop = 0.0;
- }
- else {
- $$->flags |= IS_DEFAULT_CHOPPED;
- }
- }
- | object_spec CHOP expr
- {
- $$ = $1;
- if ($$->flags & IS_DEFAULT_CHOPPED) {
- $$->flags |= IS_CHOPPED;
- $$->flags &= ~IS_DEFAULT_CHOPPED;
- $$->start_chop = 0.0;
- $$->end_chop = $3;
- }
- else if ($$->flags & IS_CHOPPED) {
- $$->end_chop = $3;
- }
- else {
- $$->start_chop = $$->end_chop = $3;
- $$->flags |= IS_CHOPPED;
- }
- }
- | object_spec SAME
- {
- $$ = $1;
- $$->flags |= IS_SAME;
- }
- | object_spec INVISIBLE
- {
- $$ = $1;
- $$->flags |= IS_INVISIBLE;
- }
- | object_spec LEFT_ARROW_HEAD
- {
- $$ = $1;
- $$->flags |= HAS_LEFT_ARROW_HEAD;
- }
- | object_spec RIGHT_ARROW_HEAD
- {
- $$ = $1;
- $$->flags |= HAS_RIGHT_ARROW_HEAD;
- }
- | object_spec DOUBLE_ARROW_HEAD
- {
- $$ = $1;
- $$->flags |= (HAS_LEFT_ARROW_HEAD|HAS_RIGHT_ARROW_HEAD);
- }
- | object_spec CW
- {
- $$ = $1;
- $$->flags |= IS_CLOCKWISE;
- }
- | object_spec CCW
- {
- $$ = $1;
- $$->flags &= ~IS_CLOCKWISE;
- }
- | object_spec text %prec TEXT
- {
- $$ = $1;
- text_item **p;
- for (p = & $$->text; *p; p = &(*p)->next)
- ;
- *p = new text_item($2.str, $2.filename, $2.lineno);
- }
- | object_spec LJUST
- {
- $$ = $1;
- if ($$->text) {
- text_item *p;
- for (p = $$->text; p->next; p = p->next)
- ;
- p->adj.h = LEFT_ADJUST;
- }
- }
- | object_spec RJUST
- {
- $$ = $1;
- if ($$->text) {
- text_item *p;
- for (p = $$->text; p->next; p = p->next)
- ;
- p->adj.h = RIGHT_ADJUST;
- }
- }
- | object_spec ABOVE
- {
- $$ = $1;
- if ($$->text) {
- text_item *p;
- for (p = $$->text; p->next; p = p->next)
- ;
- p->adj.v = ABOVE_ADJUST;
- }
- }
- | object_spec BELOW
- {
- $$ = $1;
- if ($$->text) {
- text_item *p;
- for (p = $$->text; p->next; p = p->next)
- ;
- p->adj.v = BELOW_ADJUST;
- }
- }
- | object_spec THICKNESS expr
- {
- $$ = $1;
- $$->flags |= HAS_THICKNESS;
- $$->thickness = $3;
- }
- | object_spec ALIGNED
- {
- $$ = $1;
- $$->flags |= IS_ALIGNED;
- }
- ;
-
-text:
- TEXT
- {
- $$ = $1;
- }
- | SPRINTF '(' TEXT sprintf_args ')'
- {
- $$.filename = $3.filename;
- $$.lineno = $3.lineno;
- $$.str = do_sprintf($3.str, $4.v, $4.nv);
- a_delete $4.v;
- a_delete $3.str;
- }
- ;
-
-sprintf_args:
- /* empty */
- {
- $$.v = 0;
- $$.nv = 0;
- $$.maxv = 0;
- }
- | sprintf_args ',' expr
- {
- $$ = $1;
- if ($$.nv >= $$.maxv) {
- if ($$.nv == 0) {
- $$.v = new double[4];
- $$.maxv = 4;
- }
- else {
- double *oldv = $$.v;
- $$.maxv *= 2;
- $$.v = new double[$$.maxv];
- memcpy($$.v, oldv, $$.nv*sizeof(double));
- a_delete oldv;
- }
- }
- $$.v[$$.nv] = $3;
- $$.nv += 1;
- }
- ;
-
-position:
- position_not_place
- { $$ = $1; }
- | place
- {
- position pos = $1;
- $$.x = pos.x;
- $$.y = pos.y;
- }
- ;
-
-position_not_place:
- expr_pair
- { $$ = $1; }
- | position '+' expr_pair
- {
- $$.x = $1.x + $3.x;
- $$.y = $1.y + $3.y;
- }
- | position '-' expr_pair
- {
- $$.x = $1.x - $3.x;
- $$.y = $1.y - $3.y;
- }
- | '(' position ',' position ')'
- {
- $$.x = $2.x;
- $$.y = $4.y;
- }
- | expr between position AND position
- {
- $$.x = (1.0 - $1)*$3.x + $1*$5.x;
- $$.y = (1.0 - $1)*$3.y + $1*$5.y;
- }
- | expr '<' position ',' position '>'
- {
- $$.x = (1.0 - $1)*$3.x + $1*$5.x;
- $$.y = (1.0 - $1)*$3.y + $1*$5.y;
- }
- ;
-
-between:
- BETWEEN
- | OF THE WAY BETWEEN
- ;
-
-expr_pair:
- expr ',' expr
- { $$.x = $1; $$.y = $3; }
- | '(' expr_pair ')'
- { $$ = $2; }
- ;
-
-place:
- label %prec CHOP /* line at A left == line (at A) left */
- { $$ = $1; }
- | label corner
- {
- path pth($2);
- if (!pth.follow($1, & $$))
- YYABORT;
- }
- | corner label
- {
- path pth($1);
- if (!pth.follow($2, & $$))
- YYABORT;
- }
- | corner OF label
- {
- path pth($1);
- if (!pth.follow($3, & $$))
- YYABORT;
- }
- | HERE
- {
- $$.x = current_position.x;
- $$.y = current_position.y;
- $$.obj = 0;
- }
- ;
-
-label:
- LABEL
- {
- place *p = lookup_label($1);
- if (!p) {
- lex_error("there is no place `%1'", $1);
- YYABORT;
- }
- $$ = *p;
- a_delete $1;
- }
- | nth_primitive
- {
- $$.obj = $1;
- }
- | label '.' LABEL
- {
- path pth($3);
- if (!pth.follow($1, & $$))
- YYABORT;
- }
- ;
-
-ordinal:
- ORDINAL
- { $$ = $1; }
- | '`' any_expr TH
- {
- // XXX Check for overflow (and non-integers?).
- $$ = (int)$2;
- }
- ;
-
-optional_ordinal_last:
- LAST
- { $$ = 1; }
- | ordinal LAST
- { $$ = $1; }
- ;
-
-nth_primitive:
- ordinal object_type
- {
- int count = 0;
- object *p;
- for (p = olist.head; p != 0; p = p->next)
- if (p->type() == $2 && ++count == $1) {
- $$ = p;
- break;
- }
- if (p == 0) {
- lex_error("there is no %1%2 %3", $1, ordinal_postfix($1),
- object_type_name($2));
- YYABORT;
- }
- }
- | optional_ordinal_last object_type
- {
- int count = 0;
- object *p;
- for (p = olist.tail; p != 0; p = p->prev)
- if (p->type() == $2 && ++count == $1) {
- $$ = p;
- break;
- }
- if (p == 0) {
- lex_error("there is no %1%2 last %3", $1,
- ordinal_postfix($1), object_type_name($2));
- YYABORT;
- }
- }
- ;
-
-object_type:
- BOX
- { $$ = BOX_OBJECT; }
- | CIRCLE
- { $$ = CIRCLE_OBJECT; }
- | ELLIPSE
- { $$ = ELLIPSE_OBJECT; }
- | ARC
- { $$ = ARC_OBJECT; }
- | LINE
- { $$ = LINE_OBJECT; }
- | ARROW
- { $$ = ARROW_OBJECT; }
- | SPLINE
- { $$ = SPLINE_OBJECT; }
- | '[' ']'
- { $$ = BLOCK_OBJECT; }
- | TEXT
- { $$ = TEXT_OBJECT; }
- ;
-
-label_path:
- '.' LABEL
- {
- $$ = new path($2);
- }
- | label_path '.' LABEL
- {
- $$ = $1;
- $$->append($3);
- }
- ;
-
-relative_path:
- corner
- {
- $$ = new path($1);
- }
- /* give this a lower precedence than LEFT and RIGHT so that
- [A: box] with .A left == [A: box] with (.A left) */
-
- | label_path %prec TEXT
- {
- $$ = $1;
- }
- | label_path corner
- {
- $$ = $1;
- $$->append($2);
- }
- ;
-
-path:
- relative_path
- {
- $$ = $1;
- }
- | '(' relative_path ',' relative_path ')'
- {
- $$ = $2;
- $$->set_ypath($4);
- }
- /* The rest of these rules are a compatibility sop. */
- | ORDINAL LAST object_type relative_path
- {
- lex_warning("`%1%2 last %3' in `with' argument ignored",
- $1, ordinal_postfix($1), object_type_name($3));
- $$ = $4;
- }
- | LAST object_type relative_path
- {
- lex_warning("`last %1' in `with' argument ignored",
- object_type_name($2));
- $$ = $3;
- }
- | ORDINAL object_type relative_path
- {
- lex_warning("`%1%2 %3' in `with' argument ignored",
- $1, ordinal_postfix($1), object_type_name($2));
- $$ = $3;
- }
- | LABEL relative_path
- {
- lex_warning("initial `%1' in `with' argument ignored", $1);
- a_delete $1;
- $$ = $2;
- }
- ;
-
-corner:
- DOT_N
- { $$ = &object::north; }
- | DOT_E
- { $$ = &object::east; }
- | DOT_W
- { $$ = &object::west; }
- | DOT_S
- { $$ = &object::south; }
- | DOT_NE
- { $$ = &object::north_east; }
- | DOT_SE
- { $$ = &object:: south_east; }
- | DOT_NW
- { $$ = &object::north_west; }
- | DOT_SW
- { $$ = &object::south_west; }
- | DOT_C
- { $$ = &object::center; }
- | DOT_START
- { $$ = &object::start; }
- | DOT_END
- { $$ = &object::end; }
- | TOP
- { $$ = &object::north; }
- | BOTTOM
- { $$ = &object::south; }
- | LEFT
- { $$ = &object::west; }
- | RIGHT
- { $$ = &object::east; }
- | UPPER LEFT
- { $$ = &object::north_west; }
- | LOWER LEFT
- { $$ = &object::south_west; }
- | UPPER RIGHT
- { $$ = &object::north_east; }
- | LOWER RIGHT
- { $$ = &object::south_east; }
- | LEFT_CORNER
- { $$ = &object::west; }
- | RIGHT_CORNER
- { $$ = &object::east; }
- | UPPER LEFT_CORNER
- { $$ = &object::north_west; }
- | LOWER LEFT_CORNER
- { $$ = &object::south_west; }
- | UPPER RIGHT_CORNER
- { $$ = &object::north_east; }
- | LOWER RIGHT_CORNER
- { $$ = &object::south_east; }
- | CENTER
- { $$ = &object::center; }
- | START
- { $$ = &object::start; }
- | END
- { $$ = &object::end; }
- ;
-
-expr:
- VARIABLE
- {
- if (!lookup_variable($1, & $$)) {
- lex_error("there is no variable `%1'", $1);
- YYABORT;
- }
- a_delete $1;
- }
- | NUMBER
- { $$ = $1; }
- | place DOT_X
- {
- if ($1.obj != 0)
- $$ = $1.obj->origin().x;
- else
- $$ = $1.x;
- }
- | place DOT_Y
- {
- if ($1.obj != 0)
- $$ = $1.obj->origin().y;
- else
- $$ = $1.y;
- }
- | place DOT_HT
- {
- if ($1.obj != 0)
- $$ = $1.obj->height();
- else
- $$ = 0.0;
- }
- | place DOT_WID
- {
- if ($1.obj != 0)
- $$ = $1.obj->width();
- else
- $$ = 0.0;
- }
- | place DOT_RAD
- {
- if ($1.obj != 0)
- $$ = $1.obj->radius();
- else
- $$ = 0.0;
- }
- | expr '+' expr
- { $$ = $1 + $3; }
- | expr '-' expr
- { $$ = $1 - $3; }
- | expr '*' expr
- { $$ = $1 * $3; }
- | expr '/' expr
- {
- if ($3 == 0.0) {
- lex_error("division by zero");
- YYABORT;
- }
- $$ = $1/$3;
- }
- | expr '%' expr
- {
- if ($3 == 0.0) {
- lex_error("modulus by zero");
- YYABORT;
- }
- $$ = fmod($1, $3);
- }
- | expr '^' expr
- {
- errno = 0;
- $$ = pow($1, $3);
- if (errno == EDOM) {
- lex_error("arguments to `^' operator out of domain");
- YYABORT;
- }
- if (errno == ERANGE) {
- lex_error("result of `^' operator out of range");
- YYABORT;
- }
- }
- | '-' expr %prec '!'
- { $$ = -$2; }
- | '(' any_expr ')'
- { $$ = $2; }
- | SIN '(' any_expr ')'
- {
- errno = 0;
- $$ = sin($3);
- if (errno == ERANGE) {
- lex_error("sin result out of range");
- YYABORT;
- }
- }
- | COS '(' any_expr ')'
- {
- errno = 0;
- $$ = cos($3);
- if (errno == ERANGE) {
- lex_error("cos result out of range");
- YYABORT;
- }
- }
- | ATAN2 '(' any_expr ',' any_expr ')'
- {
- errno = 0;
- $$ = atan2($3, $5);
- if (errno == EDOM) {
- lex_error("atan2 argument out of domain");
- YYABORT;
- }
- if (errno == ERANGE) {
- lex_error("atan2 result out of range");
- YYABORT;
- }
- }
- | LOG '(' any_expr ')'
- {
- errno = 0;
- $$ = log10($3);
- if (errno == ERANGE) {
- lex_error("log result out of range");
- YYABORT;
- }
- }
- | EXP '(' any_expr ')'
- {
- errno = 0;
- $$ = pow(10.0, $3);
- if (errno == ERANGE) {
- lex_error("exp result out of range");
- YYABORT;
- }
- }
- | SQRT '(' any_expr ')'
- {
- errno = 0;
- $$ = sqrt($3);
- if (errno == EDOM) {
- lex_error("sqrt argument out of domain");
- YYABORT;
- }
- }
- | K_MAX '(' any_expr ',' any_expr ')'
- { $$ = $3 > $5 ? $3 : $5; }
- | K_MIN '(' any_expr ',' any_expr ')'
- { $$ = $3 < $5 ? $3 : $5; }
- | INT '(' any_expr ')'
- { $$ = floor($3); }
- | RAND '(' any_expr ')'
- { $$ = 1.0 + floor(((rand()&0x7fff)/double(0x7fff))*$3); }
- | RAND '(' ')'
- {
- /* return a random number in the range [0,1) */
- /* portable, but not very random */
- $$ = (rand() & 0x7fff) / double(0x8000);
- }
- | expr '<' expr
- { $$ = ($1 < $3); }
- | expr LESSEQUAL expr
- { $$ = ($1 <= $3); }
- | expr '>' expr
- { $$ = ($1 > $3); }
- | expr GREATEREQUAL expr
- { $$ = ($1 >= $3); }
- | expr EQUALEQUAL expr
- { $$ = ($1 == $3); }
- | expr NOTEQUAL expr
- { $$ = ($1 != $3); }
- | expr ANDAND expr
- { $$ = ($1 != 0.0 && $3 != 0.0); }
- | expr OROR expr
- { $$ = ($1 != 0.0 || $3 != 0.0); }
- | '!' expr
- { $$ = ($2 == 0.0); }
-
- ;
-
-%%
-
-/* bison defines const to be empty unless __STDC__ is defined, which it
-isn't under cfront */
-
-#ifdef const
-#undef const
-#endif
-
-static struct {
- const char *name;
- double val;
- int scaled; // non-zero if val should be multiplied by scale
-} defaults_table[] = {
- { "arcrad", .25, 1 },
- { "arrowht", .1, 1 },
- { "arrowwid", .05, 1 },
- { "circlerad", .25, 1 },
- { "boxht", .5, 1 },
- { "boxwid", .75, 1 },
- { "boxrad", 0.0, 1 },
- { "dashwid", .05, 1 },
- { "ellipseht", .5, 1 },
- { "ellipsewid", .75, 1 },
- { "moveht", .5, 1 },
- { "movewid", .5, 1 },
- { "lineht", .5, 1 },
- { "linewid", .5, 1 },
- { "textht", 0.0, 1 },
- { "textwid", 0.0, 1 },
- { "scale", 1.0, 0 },
- { "linethick", -1.0, 0 }, // in points
- { "fillval", .5, 0 },
- { "arrowhead", 1.0, 0 },
- { "maxpswid", 8.5, 0 },
- { "maxpsht", 11.0, 0 },
-};
-
-place *lookup_label(const char *label)
-{
- saved_state *state = current_saved_state;
- PTABLE(place) *tbl = current_table;
- for (;;) {
- place *pl = tbl->lookup(label);
- if (pl)
- return pl;
- if (!state)
- return 0;
- tbl = state->tbl;
- state = state->prev;
- }
-}
-
-void define_label(const char *label, const place *pl)
-{
- place *p = new place;
- *p = *pl;
- current_table->define(label, p);
-}
-
-int lookup_variable(const char *name, double *val)
-{
- place *pl = lookup_label(name);
- if (pl) {
- *val = pl->x;
- return 1;
- }
- return 0;
-}
-
-void define_variable(const char *name, double val)
-{
- place *p = new place;
- p->obj = 0;
- p->x = val;
- p->y = 0.0;
- current_table->define(name, p);
- if (strcmp(name, "scale") == 0) {
- // When the scale changes, reset all scaled pre-defined variables to
- // their default values.
- for (int i = 0; i < sizeof(defaults_table)/sizeof(defaults_table[0]); i++)
- if (defaults_table[i].scaled)
- define_variable(defaults_table[i].name, val*defaults_table[i].val);
- }
-}
-
-// called once only (not once per parse)
-
-void parse_init()
-{
- current_direction = RIGHT_DIRECTION;
- current_position.x = 0.0;
- current_position.y = 0.0;
- // This resets everything to its default value.
- reset_all();
-}
-
-void reset(const char *nm)
-{
- for (int i = 0; i < sizeof(defaults_table)/sizeof(defaults_table[0]); i++)
- if (strcmp(nm, defaults_table[i].name) == 0) {
- double val = defaults_table[i].val;
- if (defaults_table[i].scaled) {
- double scale;
- lookup_variable("scale", &scale);
- val *= scale;
- }
- define_variable(defaults_table[i].name, val);
- return;
- }
- lex_error("`%1' is not a predefined variable", nm);
-}
-
-void reset_all()
-{
- // We only have to explicitly reset the pre-defined variables that
- // aren't scaled because `scale' is not scaled, and changing the
- // value of `scale' will reset all the pre-defined variables that
- // are scaled.
- for (int i = 0; i < sizeof(defaults_table)/sizeof(defaults_table[0]); i++)
- if (!defaults_table[i].scaled)
- define_variable(defaults_table[i].name, defaults_table[i].val);
-}
-
-// called after each parse
-
-void parse_cleanup()
-{
- while (current_saved_state != 0) {
- delete current_table;
- current_table = current_saved_state->tbl;
- saved_state *tem = current_saved_state;
- current_saved_state = current_saved_state->prev;
- delete tem;
- }
- assert(current_table == &top_table);
- PTABLE_ITERATOR(place) iter(current_table);
- const char *key;
- place *pl;
- while (iter.next(&key, &pl))
- if (pl->obj != 0) {
- position pos = pl->obj->origin();
- pl->obj = 0;
- pl->x = pos.x;
- pl->y = pos.y;
- }
- while (olist.head != 0) {
- object *tem = olist.head;
- olist.head = olist.head->next;
- delete tem;
- }
- olist.tail = 0;
- current_direction = RIGHT_DIRECTION;
- current_position.x = 0.0;
- current_position.y = 0.0;
-}
-
-const char *ordinal_postfix(int n)
-{
- if (n < 10 || n > 20)
- switch (n % 10) {
- case 1:
- return "st";
- case 2:
- return "nd";
- case 3:
- return "rd";
- }
- return "th";
-}
-
-const char *object_type_name(object_type type)
-{
- switch (type) {
- case BOX_OBJECT:
- return "box";
- case CIRCLE_OBJECT:
- return "circle";
- case ELLIPSE_OBJECT:
- return "ellipse";
- case ARC_OBJECT:
- return "arc";
- case SPLINE_OBJECT:
- return "spline";
- case LINE_OBJECT:
- return "line";
- case ARROW_OBJECT:
- return "arrow";
- case MOVE_OBJECT:
- return "move";
- case TEXT_OBJECT:
- return "\"\"";
- case BLOCK_OBJECT:
- return "[]";
- case OTHER_OBJECT:
- case MARK_OBJECT:
- default:
- break;
- }
- return "object";
-}
-
-static char sprintf_buf[1024];
-
-char *format_number(const char *form, double n)
-{
- if (form == 0)
- form = "%g";
- return do_sprintf(form, &n, 1);
-}
-
-char *do_sprintf(const char *form, const double *v, int nv)
-{
- string result;
- int i = 0;
- string one_format;
- while (*form) {
- if (*form == '%') {
- one_format += *form++;
- for (; *form != '\0' && strchr("#-+ 0123456789.", *form) != 0; form++)
- one_format += *form;
- if (*form == '\0' || strchr("eEfgG%", *form) == 0) {
- lex_error("bad sprintf format");
- result += one_format;
- result += form;
- break;
- }
- if (*form == '%') {
- one_format += *form++;
- one_format += '\0';
- snprintf(sprintf_buf, sizeof(sprintf_buf),
- "%s", one_format.contents());
- }
- else {
- if (i >= nv) {
- lex_error("too few arguments to snprintf");
- result += one_format;
- result += form;
- break;
- }
- one_format += *form++;
- one_format += '\0';
- snprintf(sprintf_buf, sizeof(sprintf_buf),
- one_format.contents(), v[i++]);
- }
- one_format.clear();
- result += sprintf_buf;
- }
- else
- result += *form++;
- }
- result += '\0';
- return strsave(result.contents());
-}