698 lines
16 KiB
Plaintext
698 lines
16 KiB
Plaintext
%{
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/*-
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* Copyright (c) 1995
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* Paul Richards. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Paul Richards.
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* 4. The name Paul Richards may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PAUL RICHARDS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <forms.h>
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char *cpstr(char *);
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extern int yyleng;
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int lineno = 1;
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int charno = 1;
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int off;
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char *startname;
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char *formname;
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char *text;
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char *label;
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char *fieldname;
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char *function;
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char *up, *down, *left, *right, *next;
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char *linkname;
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int height, width;
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int y, x;
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int width;
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int limit;
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char *attr;
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int type;
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int lbl_flag;
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int selected, no_options=0;
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FILE *outf;
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struct field_list {
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char *fieldname;
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char *defname;
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char *attr;
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struct field field;
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struct field_list *next;
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};
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struct field_list *cur_field;
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struct field_list *field_list;
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struct field_list *field;
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struct field_list *cur_form_field;
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struct field_list *form_field_list;
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struct link_list {
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char *linkname;
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char *fieldname;
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char *up;
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char *down;
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char *left;
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char *right;
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char *next;
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struct link_list *lnext;
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};
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struct link_list *cur_link;
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struct link_list *link_list;
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struct link_list *link;
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struct form_list {
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char *formname;
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struct form form;
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struct form_list *next;
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struct field_list *fields;
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char *startfield;
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};
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struct form_list *cur_form;
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struct form_list *form_list;
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struct form_list *form;
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struct menu_list {
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char *option;
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struct menu_list *next;
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};
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struct menu_list *cur_menu;
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struct menu_list *menu_list;
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struct menu_list *menu;
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%}
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%union {
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int ival;
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char *sval;
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}
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%token <ival> FORM
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%token <sval> NAME
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%token <sval> STRING
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%token <ival> AT
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%token <ival> AS
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%token <ival> HEIGHT
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%token <ival> EQUALS
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%token <ival> NUMBER
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%token <ival> WIDTH
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%token <ival> STARTFIELD
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%token <ival> COLON
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%token <ival> LBRACE
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%token <ival> RBRACE
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%token <ival> FIELD
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%token <ival> TEXT
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%token <ival> ATTR
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%token <ival> DEFAULT
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%token <ival> LABEL
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%token <ival> LIMIT
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%token <ival> SELECTED
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%token <ival> OPTIONS
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%token <ival> ACTION
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%token <ival> FUNC
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%token <ival> LINK
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%token <ival> UP
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%token <ival> DOWN
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%token <ival> LEFT
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%token <ival> RIGHT
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%token <ival> NEXT
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%start spec
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%%
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spec: fields links forms
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{
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outf = fopen("frm.tab.h", "w");
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if (!outf) {
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perror("Couldn't open output file:");
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exit (1);
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}
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output_forms(outf);
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if (fclose(outf) == EOF) {
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perror("Error closing output file:");
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exit (1);
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}
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}
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;
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fields: field
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| fields field
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;
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links: /* empty */
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| link
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| links link
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;
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link: LINK NAME
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{
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linkname = cpstr($2);
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fieldname = 0;
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up = 0;
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down = 0;
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left = 0;
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right = 0;
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next = 0;
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}
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alias LBRACE connspec RBRACE
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{
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link = malloc(sizeof (struct link_list));
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if (!link) {
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fprintf(stderr,"Failed to allocate memory for link\n");
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exit(1);
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}
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link->linkname = linkname;
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link->fieldname = fieldname;
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link->up = up;
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link->down = down;
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link->left = left;
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link->right = right;
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link->next = next;
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if (!cur_link) {
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link_list = link;
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cur_link = link;
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} else {
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cur_link->lnext = link;
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cur_link = link;
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}
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}
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;
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alias: /* empty */
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| AS NAME
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{ fieldname = cpstr($2); }
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;
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connspec: conns
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| connspec conns
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;
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conns: UP EQUALS NAME
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{ up = cpstr($3); }
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| DOWN EQUALS NAME
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{ down = cpstr($3); }
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| LEFT EQUALS NAME
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{ left = cpstr($3); }
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| RIGHT EQUALS NAME
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{ right = cpstr($3); }
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| NEXT EQUALS NAME
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{ next = cpstr($3); }
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;
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forms: form
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| forms form
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;
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form: FORM NAME
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{ formname = cpstr($2); }
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AT coord
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{
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form = malloc(sizeof (struct form_list));
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if (!form) {
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fprintf(stderr,"Failed to allocate memory for form\n");
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exit(1);
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}
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form->form.y = y;
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form->form.x = x;
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}
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LBRACE formspec RBRACE
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{
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form->startfield = startname;
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form->formname = formname;
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form->form.height = height;
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form->form.width = width;
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form->fields = form_field_list;
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cur_form_field = 0;
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if (!cur_form) {
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form_list = form;
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cur_form = form;
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} else {
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cur_form->next = form;
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cur_form = form;
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}
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}
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;
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formspec: height width startfield fieldlocs
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;
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height: HEIGHT EQUALS NUMBER
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{ height = $3; }
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;
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width: WIDTH EQUALS NUMBER
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{ width = $3; }
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;
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startfield: /* empty */
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{ startname = 0;
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printf("Warning: No start field specified for form %s\n", formname);
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}
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| STARTFIELD EQUALS NAME
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{ startname = cpstr($3); }
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;
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fieldlocs: /* empty */
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| afield
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| fieldlocs afield
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;
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afield: FIELD NAME
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{ fieldname = cpstr($2); }
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AT coord
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{
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field = malloc(sizeof (struct field_list));
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if (!field) {
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fprintf(stderr,"Failed to allocate memory for form field\n");
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exit(1);
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}
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field->fieldname = fieldname;
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field->field.y = y;
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field->field.x = x;
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if (!cur_form_field) {
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form_field_list = field;
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cur_form_field = field;
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} else {
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cur_form_field->next = field;
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cur_form_field = field;
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}
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}
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;
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coord: NUMBER COLON NUMBER
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{ y = $1; x = $3; }
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;
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field: FIELD NAME
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{ fieldname = cpstr($2); }
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LBRACE fieldspec RBRACE
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{
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field = malloc(sizeof (struct field_list));
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if (!field) {
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fprintf(stderr,"Failed to allocate memory for field\n");
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exit(1);
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}
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field->fieldname = fieldname;
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field->field.type = type;
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field->field.width = width;
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field->attr = attr;
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switch (type) {
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case F_TEXT:
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field->field.field.text = malloc(sizeof (struct text_field));
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if (!field->field.field.text) {
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fprintf(stderr,
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"Failed to allocate memory for text field\n");
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exit (1);
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}
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field->field.field.text->text = text;
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break;
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case F_INPUT:
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field->field.field.input = malloc(sizeof (struct input_field));
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if (!field->field.field.input) {
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fprintf(stderr,
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"Failed to allocate memory for input field\n");
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exit (1);
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}
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field->field.field.input->lbl_flag = lbl_flag;
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field->field.field.input->label = label;
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field->field.field.input->limit = limit;
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break;
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case F_MENU:
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field->field.field.menu = malloc(sizeof (struct menu_field));
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if (!field->field.field.menu) {
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fprintf(stderr,
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"Failed to allocate memory for menu field\n");
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exit (1);
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}
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field->field.field.menu->selected = selected;
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field->field.field.menu->no_options = no_options;
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no_options = 0;
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field->field.field.menu->options = (char **)menu_list;
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cur_menu = 0;
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break;
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case F_ACTION:
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field->field.field.action = malloc(sizeof (struct action_field));
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if (!field->field.field.action) {
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fprintf(stderr,
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"Failed to allocate memory for action field\n");
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exit (1);
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}
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field->field.field.action->text = text;
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field->field.field.action->fn = (void *) function;
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break;
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default:
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break;
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}
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if (!cur_field) {
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field_list = field;
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cur_field = field;
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} else {
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cur_field->next = field;
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cur_field = field;
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}
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width=0;
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attr=0;
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limit=0;
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}
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;
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fieldspec: width attr type
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type: textfield
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| inputfield
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| menufield
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| actionfield
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| error
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{ fprintf(stderr, "Uknown field type at %d\n", lineno); }
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;
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textfield: TEXT EQUALS STRING
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{ type = F_TEXT; text = cpstr($3); }
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;
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inputfield: inputspec
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{ type = F_INPUT; }
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;
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inputspec: LABEL EQUALS STRING limit
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{ lbl_flag = 1; label = cpstr($3); }
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| DEFAULT EQUALS STRING limit
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{ lbl_flag = 0; label = cpstr($3); }
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;
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limit: /* empty */
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| LIMIT EQUALS NUMBER
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{ limit = $3; }
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menufield: SELECTED EQUALS NUMBER OPTIONS EQUALS menuoptions
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{ type = F_MENU; selected = $3; }
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;
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menuoptions: menuoption
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| menuoptions COLON menuoption
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;
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menuoption: STRING
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{ menu = malloc(sizeof(struct menu_list));
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if (!menu) {
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fprintf(stderr,
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"Couldn't allocate memory for menu option\n");
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exit (1);
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}
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menu->option = cpstr($1);
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++no_options;
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if (!cur_menu) {
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menu_list = menu;
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cur_menu = menu;
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} else {
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cur_menu->next = menu;
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cur_menu = menu;
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}
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}
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;
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actionfield: ACTION EQUALS STRING FUNC EQUALS NAME
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{ type = F_ACTION; text = cpstr($3); function = cpstr($6); }
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;
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width: /* empty */
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{ width = 0; }
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| WIDTH EQUALS NUMBER
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{ width = $3; }
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;
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attr: /* empty */
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{ attr = 0; }
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| ATTR EQUALS NAME
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{ attr = cpstr($3); }
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;
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%%
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yyerror (char *error)
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{
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fprintf(stderr, "%s at line %d\n",error, lineno);
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exit(1);
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}
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yywrap()
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{
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return(1);
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}
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char *
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cpstr(char *ostr)
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{
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char *nstr;
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nstr = malloc(strlen(ostr)+1);
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if (!nstr) {
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fprintf(stderr, "Couldn't allocate memory for string\n");
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exit(1);
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}
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strcpy(nstr, ostr);
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return (nstr);
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}
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output_field(struct field_list *fields, char *fieldname, FILE *outf)
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{
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struct menu_list *menu;
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int i, lim, len;
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switch(fields->field.type) {
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case F_TEXT:
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if (!fieldname) {
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if (!fields->field.width)
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fields->field.width = strlen(fields->field.field.text->text);
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fprintf(outf, "struct text_field %s = {\"%s\"};\n",
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fields->fieldname,
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fields->field.field.text->text);
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}
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break;
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case F_INPUT:
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if (!fields->field.width && !fields->field.field.input->limit) {
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fields->field.width = strlen(fields->field.field.input->label);
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fields->field.field.input->limit = fields->field.width;
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} else if (!fields->field.width)
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fields->field.width = fields->field.field.input->limit;
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else if (!fields->field.field.input->limit)
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fields->field.field.input->limit = fields->field.width;
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if (fields->field.field.input->limit < fields->field.width)
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fields->field.width = fields->field.field.input->limit;
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fprintf(outf, "struct input_field %s = {%d, \"%s\", 0, %d};\n",
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(fieldname)?fieldname:fields->fieldname,
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(fields->field.field.input->lbl_flag ? 1 : 0),
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fields->field.field.input->label,
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fields->field.field.input->limit);
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break;
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case F_MENU:
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if (!fieldname) {
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fprintf(outf, "char *%s_options[] = {",
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fields->fieldname);
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menu = (struct menu_list *)fields->field.field.menu->options;
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lim = 0;
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for (i=0; i < fields->field.field.menu->no_options - 1; i++) {
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fprintf(outf, "\"%s\", ", menu->option);
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len = strlen(menu->option);
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if (len > lim)
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lim = len;
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menu = menu->next;
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}
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if (!fields->field.width)
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fields->field.width = lim;
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fprintf(outf, "\"%s\"};\n", menu->option);
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}
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fprintf(outf, "struct menu_field %s = {%d, %d, %s_options};\n",
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(fieldname)?fieldname:fields->fieldname,
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fields->field.field.menu->no_options,
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fields->field.field.menu->selected,
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fields->fieldname);
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break;
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case F_ACTION:
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if (!fields->field.width)
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fields->field.width = strlen(fields->field.field.action->text);
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fprintf(outf, "struct action_field %s = {\"%s\", &%s};\n",
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(fieldname)?fieldname:fields->fieldname,
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fields->field.field.action->text,
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fields->field.field.action->fn);
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break;
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default:
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break;
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}
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}
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output_forms(FILE *outf)
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{
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struct form_list *forms;
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struct field_list *fields;
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/* Output the general field definitions */
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for (fields = field_list; fields; fields=fields->next)
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output_field(fields, 0, outf);
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for(forms=form_list; forms; forms = forms->next) {
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parse_form(forms, outf);
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}
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}
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parse_form(struct form_list *form, FILE *outf)
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{
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struct field_list *fields;
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struct field_list *def;
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struct field_list *info;
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struct link_list *links;
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char *fieldname;
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int no_fields = 0;
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/*
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* Run through the specific instances of the fields referenced by
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|
* this form, filling in the link structures and outputing a field
|
|
* definition for this particular instance.
|
|
*/
|
|
for(fields=form->fields; fields; fields=fields->next) {
|
|
|
|
fieldname = fields->fieldname;
|
|
|
|
/* Search links list for an entry for this field */
|
|
for (links = link_list; links; links = links->lnext) {
|
|
if (!strcmp(links->linkname, fields->fieldname)) {
|
|
/* Check for an alias */
|
|
if (links->fieldname)
|
|
fieldname = links->fieldname;
|
|
fields->fieldname = links->linkname;
|
|
fields->field.up = field_id(links->up, form->fields);
|
|
fields->field.down = field_id(links->down, form->fields);
|
|
fields->field.left = field_id(links->left, form->fields);
|
|
fields->field.right = field_id(links->right, form->fields);
|
|
fields->field.next = field_id(links->next, form->fields);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (def = field_list; def; def=def->next)
|
|
if (!strcmp(fieldname, def->fieldname))
|
|
break;
|
|
if (!def) {
|
|
fprintf(stderr,
|
|
"%s not found in field definitions, field not output\n",
|
|
fieldname);
|
|
} else {
|
|
fields->field.type = def->field.type;
|
|
fields->field.width = def->field.width;
|
|
fields->field.attr = def->field.attr;
|
|
}
|
|
|
|
if (!links) {
|
|
/* No links for this field */
|
|
fields->field.up = -1;
|
|
fields->field.down = -1;
|
|
fields->field.left = -1;
|
|
fields->field.right = -1;
|
|
fields->field.next = -1;
|
|
fields->defname = fieldname;
|
|
} else {
|
|
output_field(def, fields->fieldname, outf);
|
|
|
|
if ((fields->field.type == F_TEXT)
|
|
|| (fields->field.type == F_ACTION))
|
|
fields->defname = def->fieldname;
|
|
else
|
|
fields->defname = fields->fieldname;
|
|
}
|
|
}
|
|
|
|
/* Output the field table for this form */
|
|
|
|
fprintf(outf, "struct field %s_fields[] = {\n", form->formname);
|
|
|
|
for(fields=form->fields; fields; fields=fields->next) {
|
|
++no_fields;
|
|
fprintf(outf, "\t{%d, %d, %d, %d, %s, ",
|
|
fields->field.type, fields->field.y, fields->field.x,
|
|
fields->field.width, (fields->attr ? fields->attr : "F_DEFATTR"));
|
|
fprintf(outf, "%d, %d, %d, %d, %d, ",
|
|
fields->field.next,
|
|
fields->field.up,
|
|
fields->field.down,
|
|
fields->field.left,
|
|
fields->field.right);
|
|
fprintf(outf, "(struct text_field *)&%s},\n",
|
|
fields->defname);
|
|
}
|
|
|
|
fprintf(outf, "\t{%d, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}\n};\n", F_END);
|
|
|
|
/* If no start field set then find first non-text field */
|
|
if (!form->startfield)
|
|
for (fields = form->fields; fields; fields = fields->next)
|
|
if (fields->field.type != F_TEXT) {
|
|
form->startfield = fields->fieldname;
|
|
break;
|
|
}
|
|
|
|
fprintf(outf,
|
|
"struct form %s = {%d, %d, %s_fields, %d, %d, %d, %d, 0};\n\n",
|
|
form->formname, no_fields,
|
|
field_id(form->startfield, form->fields),
|
|
form->formname, form->form.height, form->form.width,
|
|
form->form.y, form->form.x);
|
|
}
|
|
|
|
/*
|
|
* Search a field list for a particular fieldname
|
|
* and return an integer id for that field based on
|
|
* it's position in the list [0..n]. Return -1 if
|
|
* there's no match.
|
|
*/
|
|
|
|
int
|
|
field_id(char *fieldname, struct field_list *field_list)
|
|
{
|
|
struct field_list *fields;
|
|
int id=0;
|
|
|
|
/* If the strings null then fail immediately */
|
|
|
|
if (!fieldname)
|
|
return (-1);
|
|
|
|
for (fields = field_list; fields; fields = fields->next, id++) {
|
|
if (!strcmp(fieldname, fields->fieldname))
|
|
return (id);
|
|
}
|
|
|
|
fprintf(stderr, "Field %s, not found in specification\n", fieldname);
|
|
return (-1);
|
|
}
|