Usenet 1993 July/InfoMagic USENET CD-ROM July 1993.ISO/sources/x/volume0/awm/part10

Internet Message Format | 1988-08-10 | 29.2 KB

Path: uunet!wyse!mikew
From: [e-mail] (Mike Wexler)
Newsgroups: comp.sources.x
Subject: v00i011:  Ardent Window Manager(X11), Part10/13
Message-ID: <[e-mail]>
Date: 10 Aug 88 22:00:12 GMT
Sender: [e-mail]
Lines: 1306
Approved: [e-mail]

Submitted-by: unido!pcsbst!jkh (Jordan Hubbard)
Posting-number: Volume 0, Issue 11
Archive-name: awm/part10

#! /bin/sh
# This is a shell archive.  Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file".  To overwrite existing
# files, type "sh file -c".  You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g..  If this archive is complete, you
# will see the following message at the end:
#        "End of archive 10 (of 13)."
# Contents:  awm/gram.y
# Wrapped by mikew@wyse on Mon Aug  8 12:01:47 1988
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f awm/gram.y -a "${1}" != "-c" ; then
  echo shar: Will not over-write existing file \"awm/gram.y\"
else
echo shar: Extracting \"awm/gram.y\" \(26836 characters\)
sed "s/^X//" >awm/gram.y <<'END_OF_awm/gram.y'
X/*
X *
X * Copyright 1987, 1988 by Ardent Computer Corporation, Sunnyvale, Ca.
X *
X * Copyright 1987 by Jordan Hubbard.
X *
X *
X *                         All Rights Reserved
X *
X * Permission to use, copy, modify, and distribute this software and its
X * documentation for any purpose and without fee is hereby granted,
X * provided that the above copyright notice appear in all copies and that
X * both that copyright notice and this permission notice appear in
X * supporting documentation, and that the name of Ardent Computer
X * Corporation or Jordan Hubbard not be used in advertising or publicity
X * pertaining to distribution of the software without specific, written
X * prior permission.
X *
X */
X
X/*
X * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
X *
X *                         All Rights Reserved
X *
X * Permission to use, copy, modify, and distribute this software and its
X * documentation for any purpose and without fee is hereby granted,
X * provided that the above copyright notice appear in all copies and that
X * both that copyright notice and this permission notice appear in
X * supporting documentation, and that the name of Digital Equipment
X * Corporation not be used in advertising or publicity pertaining to
X * distribution of the software without specific, written prior permission.
X *
X *
X * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
X * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
X * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
X * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
X * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
X * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
X * SOFTWARE.
X */
X
X
X/*
X * MODIFICATION HISTORY
X *
X * 000 -- M. Gancarz, DEC Ultrix Engineering Group
X * 001 -- Loretta Guarino Reid, DEC Ultrix Engineering Group
X *  Western Software Lab. Convert to X11.
X * 002 -- Jordan Hubbard, U.C. Berkeley. New keywords. Menu
X * changes, gadget boxes, title bars, the kitchen sink.
X */
X
X%{
X
X#ident   "%W% %G%"
X
X
X
X#ifndef lint
Xstatic char *rcsid_gram_y = "$Header: gram.y,v 1.4 88/07/24 01:01:04 jkh Exp $";
X#endif    lint
X
X#include "X11/Xlib.h"
X#include "X11/Xutil.h"
X#include "awm.h"
X#include <signal.h>
X
X/*
X * Values returned by complex expression parser.
X */
X#define C_STRING    1    /* IsString. */
X#define C_MENU        2    /* IsMenu. */
X#define C_MAP        3    /* IsMap. */
X#define C_MENUMAP    4    /* IsMenuMap */
X#define C_PIXMAP    5    /* IsPixmap */
X#define C_ACTION    6    /* IsAction */
X
X     static int ki;            /* Keyword index. */
X     static int gadgnum;        /* # of gadget we're initing */
X     static int g_offset;        /* The gadget offset specified */
X     static int g_gravity;        /* The gadget gravity specified */
X     static char *g_forecolor;        /* gadget foreground color */
X     static char *g_backcolor;        /* gadget background color */
X     static XFontStruct *g_font;    /* gadget font */
X     static int bkmask;            /* Button/key mask. */
X     static int cmask;            /* Context mask. */
X     static char msg[BUFSIZ];        /* Error message buffer. */
X     static char *menu_name;        /* Menu name. */
X     static char *menu_pixmap;        /* Name of pixmap for menu label */
X     static MenuInfo *menu_info;    /* Menu info. */
X     static ActionLine *ml_ptr;        /* Temporary menu line pointer. */
X     static ActionLine *action;        /* Temporary action pointer */
X     MenuLink *menu_link;        /* Temporary menu link pointer. */
X     GadgetDecl **Gadgets;        /* Pointer to gadget info structs */
X     char *calloc();
X
X     %}
X
X%union {
X     char *sval;
X     int ival;
X     short shval;
X     struct _actionline *alval;
X     struct _menuinfo *mival;
X     char **cval;
X}
X
X%token NL
X     %token <sval> STRING
X     %token <ival> COMMENT
X     %type <sval> pixmap_file
X     %type <ival> gadget_subscript
X     %type <ival> keyword
X     %type <ival> compexpr
X     %type <ival> keyexpr
X     %type <ival> kmask
X     %type <ival> contexpr
X     %type <ival> contmask
X     %type <ival> buttmodexpr
X     %type <ival> buttmodifier
X     %type <ival> buttexpr
X     %type <sval> menuname
X     %type <sval> strings
X     %type <alval> textaction
X     %type <alval> menuexpr
X     %type <alval> menulist
X     %type <alval> menuline
X     %type <alval> menuaction
X
X     %%    /* beginning of rules section */
X
X input:    |    input command
X     |    input error command { yyerrok; }
X;
X
X command:    boolvar term
X     |    expr term
X     |    COMMENT    { Lineno++; }
X     |    term
X     ;
X
X term:        NL    { Lineno++; }
X|    ';'
X     ;
X
X expr:        keyword '=' compexpr
X{
X     switch (KeywordTable[$1].type) {
X     case IsQuitFunction:
X     case IsFunction:
X      if ($3 == C_MAP) {
X           bindtofunc($1, bkmask, cmask, NULL);
X      } else yyerror("illegal construct");
X      break;
X
X     case IsDownFunction:
X      if (bkmask & ButtonUp) {
X           sprintf(msg,
X               "cannot bind %s to button up",
X               KeywordTable[$1].name);
X           yyerror(msg);
X      }
X      if ($3 == C_MAP) {
X           bindtofunc($1, bkmask, cmask, NULL);
X      } else yyerror("illegal construct");
X      break;
X
X     case IsMenuMap:
X      if (bkmask & ButtonUp) {
X           sprintf(msg,
X               "cannot bind %s to button up",
X               KeywordTable[$1].name);
X           yyerror(msg);
X      }
X      if ($3 == C_MENUMAP) {
X           bindtofunc
X            ($1, bkmask, cmask, menu_name);
X      } else yyerror("illegal construct");
X      break;
X
X     case IsAction:
X      if ($3 == C_ACTION) {
X           /*
X        * We pass a structure pointer here where a char pointer
X        * is supposed to go. It was a hack, what can I say.
X        */
X           bindtofunc
X            ($1, bkmask, cmask, (char *)action);
X      } else yyerror("illegal construct");
X      break;
X
X     case IsMenu:
X      if ($3 == C_MENU) {
X           /*
X        * create a menu definition entry.
X        */
X           menu_info = stashmenuinfo(menu_name, ml_ptr, menu_pixmap);
X           menu_link = stashmenulink(menu_info);
X           Menus = appendmenulink(Menus, menu_link);
X      } else yyerror("illegal menu construct");
X      break;
X
X     case IsGadget:
X      if (gadgnum < 0) {
X           sprintf(msg, "Gadget number must be >= 0\n");
X           yyerror(msg);
X      }
X      /* Bump NumGadgets if necessary */
X      else if (gadgnum >= NumGadgets)
X           NumGadgets = gadgnum + 1;
X      if (NumGadgets > MAX_GADGETS) {
X           sprintf(msg, "\"numgadgets\" (%d) is > MAX_GADGETS (%d)\n",
X               NumGadgets, MAX_GADGETS);
X           yyerror(msg);
X      }
X      else {
X           if ($3 != C_STRING && $3 != C_PIXMAP)
X            yyerror("Illegal gadget assignment");
X           else
X            stashGadget(gadgnum, yylval.sval, $3);
X      }
X      break;
X
X     default:
X      yyerror("internal binding error");
X      break;
X     }
X}
X;
X pixmap_file:    '(' STRING ')' {
X      $$ = $2;
X }
X;
X compexpr:    keyexpr ':' contexpr ':' buttexpr
X{
X     $$ = C_MAP;
X     bkmask = $1 | $5;
X     cmask = $3;
X}
X|    keyexpr ':' contexpr ':' buttexpr ':' menuname
X{
X     $$ = C_MENUMAP;
X     bkmask = $1 | $5;
X     cmask = $3;
X     menu_name = $7;
X}
X|    keyexpr ':' contexpr ':' buttexpr ':' textaction
X{
X     $$ = C_ACTION;
X     bkmask = $1 | $5;
X     cmask = $3;
X     action = $7;
X}
X|    STRING menuexpr
X{
X     $$ = C_MENU;
X     menu_name = $1;
X     menu_pixmap = 0;
X     ml_ptr = $2;
X}
X|    pixmap_file STRING menuexpr
X{
X     $$ = C_MENU;
X     menu_name = $2;
X     menu_pixmap = $1;
X     ml_ptr = $3;
X}
X|    STRING '^' gadgetspec
X{ yylval.sval = $1; $$ = C_STRING; }
X|    pixmap_file '^' gadgetspec
X{ yylval.sval = $1; $$ = C_PIXMAP; }
X|    STRING
X{
X     $$ = C_STRING;
X     /* just in case it's a gadget, set defaults */
X     g_forecolor = Foreground;
X     g_backcolor = Background;
X     g_gravity = NoGadgetGravity;
X     g_offset = 0;
X     g_font = 0;
X}
X|    pixmap_file
X{
X     $$ = C_PIXMAP;
X     /* just in case it's a gadget, set defaults */
X     g_forecolor = Foreground;
X     g_backcolor = Background;
X     g_gravity = NoGadgetGravity;
X     g_offset = 0;
X     g_font = 0;
X}
X;
X gadgetspec:     offset
X|  offset '|' gravity
X|  offset '|' gravity '|' forecolor
X|  offset '|' gravity '|' forecolor '|' backcolor
X|  offset '|' gravity '|' forecolor '|' backcolor '|' fontspec
X;
X offset: /* empty */
X{ g_offset = 0; }
X| STRING
X{
X    g_offset = y_atoi($1);
X    g_gravity = NoGadgetGravity;
X    g_forecolor = Foreground;
X    g_backcolor = Background;
X    g_font = (XFontStruct *)NULL;
X}
X;
X gravity: /* empty */
X{ g_gravity = NoGadgetGravity; }
X| STRING
X{
X    g_gravity = gravitylookup($1);
X    g_forecolor = Foreground;
X    g_backcolor = Background;
X    g_font = (XFontStruct *)NULL;
X}
X;
X forecolor: /* empty */
X{ g_forecolor = Foreground; }
X| STRING
X{
X    g_forecolor = $1;
X    g_backcolor = Background;
X    g_font = (XFontStruct *)NULL;
X}
X;
X backcolor: /* empty */
X{ g_backcolor = Background; }
X| STRING
X{
X    g_backcolor = $1;
X    g_font = (XFontStruct *)NULL;
X}
X;
X fontspec: /* empty */
X{ g_font = 0; }
X| STRING
X{
X     g_font = XLoadQueryFont(dpy, $1);
X     if (!g_font) {
X      sprintf(msg, "Can't open gadget font '%s'\n", $1);
X      yywarn(msg);
X     }
X}
X;
X
X boolvar:    STRING
X{
X     ki = keywordlookup(yylval.sval);
X     switch (KeywordTable[ki].type) {
X     case IsParser:
X      (*KeywordTable[ki].fptr)();
X      break;
X     default:
X      yyerror("keyword error");
X     }
X}
X;
X
X keyword:    STRING    {
X      $$ = keywordlookup(yylval.sval);
X }
X|    STRING gadget_subscript {
X     $$ = keywordlookup("gadget");
X     gadgnum = $2;
X}
X;
X
X gadget_subscript:    '[' STRING ']' {
X      $$ = y_atoi(yylval.sval);
X }
X;
X
X keyexpr:    /* empty */
X{ $$ = 0; }
X|    kmask
X{ $$ = $1; }
X|    kmask '|' keyexpr
X{ $$ = $1 | $3; }
X;
X
X contexpr:    /* empty */
X{ $$ = 0xffffffff; }
X|    contmask
X{ $$ = $1; }
X|    contmask '|' contexpr
X{ $$ = $1 | $3; }
X;
X
X buttexpr:    buttmodexpr
X{ $$ = CheckButtonState($1); }
X;
X
X kmask:        STRING { $$ = keyexprlookup(yylval.sval); }
X
X contmask:    STRING
X{ $$ = contexprlookup(yylval.sval); }
X|    STRING gadget_subscript
X{
X     if ($2 < 0 || $2 >= NumGadgets) {
X      sprintf(msg, "Bad subscript, gadget #%d must be >= 0 and < %d\n",
X          $2, NumGadgets);
X      yyerror(msg);
X     }
X     else {
X      $$ = contexprlookup("gadget") | (1 << (BITS_USED + $2));
X     }
X}
X;
X buttmodexpr:     buttmodifier
X{ $$ = $1; }
X|    buttmodexpr buttmodifier
X{ $$ = $1 | $2; }
X;
X
X buttmodifier:    STRING
X{ $$ = buttexprlookup(yylval.sval); }
X;
X
X menuname:    STRING
X{ $$ = $1; }
X;
X
X menuexpr:    '{' menulist '}'
X{ $$ = $2; }
X;
X
X menulist:    menuline
X{ $$ = $1; }
X|    menulist menuline
X{ $$ = appendmenuline($1, $2); }
X|    menulist COMMENT
X{
X     Lineno++;
X     $$ = $1;
X}
X|    COMMENT
X{
X     Lineno++;
X     $$ = NULL;
X}
X|    term
X{ $$ = NULL; }
X|    menulist term
X{ $$ = $1; }
X|    error term
X{
X     $$ = NULL;
X     yyerrok;
X}
X;
X
X menuline:    strings ':' menuaction term
X{
X     $3->name = $1;
X     $3->pixmapname = (char *)0;
X     $$ = $3;
X}
X|    '(' strings ')' ':' menuaction term
X{
X     $5->pixmapname = $2;
X     $5->name = $2;
X     $$ = $5;
X}
X;
X
X menuaction:    STRING
X{
X     ki = keywordlookup(yylval.sval);
X     if ((ki != -1) &&
X     (KeywordTable[ki].type != IsFunction) &&
X     (KeywordTable[ki].type != IsImmFunction) &&
X     (KeywordTable[ki].type != IsQuitFunction) &&
X     (KeywordTable[ki].type != IsBoolean) &&
X     (KeywordTable[ki].type != IsDownFunction)) {
X      sprintf(msg,
X          "menu action \"%s\" not a function or variable",
X          KeywordTable[ki].name);
X      yyerror(msg);
X     }
X     ml_ptr = AllocActionLine();
X     if (KeywordTable[ki].type == IsQuitFunction ||
X    KeywordTable[ki].type == IsImmFunction)
X      ml_ptr->type = IsImmFunction;
X     else if (KeywordTable[ki].type == IsBoolean) {
X      ml_ptr->type = IsVar;
X      ml_ptr->text = (char *)KeywordTable[ki].bptr;
X     }
X     else
X      ml_ptr->type = IsUwmFunction;
X     ml_ptr->func = KeywordTable[ki].fptr;
X     $$ = ml_ptr;
X}
X|    STRING ':' menuname
X{
X     ki = keywordlookup($1);
X     if (ki != -1 &&
X     KeywordTable[ki].type != IsMenuMap) {
X      sprintf(msg,
X          "menu action \"%s\" not a menu function",
X          KeywordTable[ki].name);
X      yyerror(msg);
X     }
X     ml_ptr = AllocActionLine();
X     ml_ptr->type = IsMenuFunction;
X     ml_ptr->text = $3;
X     $$ = ml_ptr;
X}
X|    textaction
X{ $$ = $1; }
X;
X
X textaction: '!' strings
X{
X     $$ = StashActionLine(IsShellCommand, $2);
X}
X|    '^' strings
X{
X     $$ = StashActionLine(IsTextNL, $2);
X}
X|    '|' strings
X{
X     $$ = StashActionLine(IsText, $2);
X}
X;
X
X strings:    STRING    { $$ = yylval.sval; }
X|    strings STRING
X{ $$ = strconcat($1, $2); }
X;
X
X%%
X
X/*
X * Look up color named by "string" and return pixel value.
X */
XPixel LookupColor(string, cmap, fail)
Xchar *string;
XColormap cmap;
XBoolean *fail;
X{
X     XColor vis_ret, act_ret;
X
X     Entry("LookupColor")
X
X     if (!XAllocNamedColor(dpy, cmap, string, &vis_ret, &act_ret)) {
X     sprintf(msg, "Can't allocate color '%s', using default\n", string);
X     yywarn(msg);
X     if (fail)
X          *fail = TRUE;
X     Leave((Pixel)0)
X     }
X     if (fail)
X      *fail = FALSE;
X     Leave(vis_ret.pixel)
X}
X
X/*
X * Like LookupColor, but provides its own fallback in case of failure
X * (currently 0).
X */
XPixel GetPixel(string, cmap)
Xchar *string;
XColormap cmap;
X{
X     XColor vis_ret, act_ret;
X
X     Entry("GetPixel")
X
X     if (!string)
X     Leave((Pixel)0)
X     if (!XAllocNamedColor(dpy, cmap, string, &vis_ret, &act_ret))
X     Leave((Pixel)0)
X     Leave(vis_ret.pixel)
X}
X
X/*
X * Look up a string in the keyword table and return its index, else
X * return -1.
X */
Xint keywordlookup(string)
Xchar *string;
X{
X     int i;
X
X     Entry("keywordlookup")
X
X     for (i = 0; KeywordTable[i].name; i++) {
X      if (!strcmp(KeywordTable[i].name, string)) {
X           free(string);
X           Leave(i)
X      }
X     }
X     sprintf(msg,"keyword error: \"%s\"", string);
X     yyerror(msg);
X     free(string);
X     Leave(-1)
X}
X
X/*
X * Look up a string in the key expression table and return its mask, else
X * return -1.
X */
Xint keyexprlookup(string)
Xchar *string;
X{
X     int i;
X
X     Entry("keyexprlookup")
X
X     for (i = 0; KeyExprTbl[i].name; i++) {
X      if (!strcmp(KeyExprTbl[i].name, string)) {
X           free(string);
X           Leave(KeyExprTbl[i].mask)
X      }
X     }
X     sprintf(msg,"key expression error: \"%s\"", string);
X     yyerror(msg);
X     free(string);
X     Leave(-1)
X}
X
Xint gravitylookup(string)
Xchar *string;
X{
X     int i;
X
X     Entry("gravitylookup")
X
X     for (i = 0; GravityExprTbl[i].name; i++) {
X      if (!strcmp(GravityExprTbl[i].name, string)) {
X           free(string);
X           Leave(GravityExprTbl[i].mask)
X      }
X     }
X     sprintf(msg, "gravity expression error: \"%s\"", string);
X     yyerror(msg);
X     free(string);
X     Leave(-1);
X}
X
X/*
X * Look up a string in the context expression table and return its mask, else
X * return -1.
X */
Xcontexprlookup(string)
Xchar *string;
X{
X     int i;
X
X     Entry("contexprlookup")
X
X     for (i = 0; ContExprTbl[i].name; i++) {
X      if (!strcmp(ContExprTbl[i].name, string)) {
X           free(string);
X           Leave(ContExprTbl[i].mask)
X      }
X     }
X     sprintf(msg,"context expression error: \"%s\"", string);
X     yyerror(msg);
X     free(string);
X     Leave(-1)
X}
X
X/*
X * Look up a string in the button expression table and return its mask, else
X * return -1.
X */
Xbuttexprlookup(string)
Xchar *string;
X{
X     int i;
X
X     Entry("buttexprlookup")
X
X     for (i = 0; ButtModTbl[i].name; i++) {
X      if (!strcmp(ButtModTbl[i].name, string)) {
X           free(string);
X           Leave(ButtModTbl[i].mask)
X      }
X     }
X     sprintf(msg,"button modifier error: \"%s\"", string);
X     yyerror(msg);
X     free(string);
X     Leave(-1)
X}
X
X/*
X * Scan a string and return an integer.  Report an error if any
X * non-numeric characters are found.
X */
Xy_atoi(s)
Xchar *s;
X{
X     int n = 0;
X
X     Entry("y_atoi")
X
X     while (*s) {
X      if (*s >= '0' && *s <= '9')
X           n = 10 * n + *s - '0';
X      else {
X           yyerror("non-numeric argument");
X           Leave(-1)
X      }
X      s++;
X     }
X     Leave(n)
X}
X
X/*
X * Append s2 to s1, extending s1 as necessary.
X */
Xchar *
X     strconcat(s1, s2)
Xchar *s1, *s2;
X{
X     char *malloc();
X     char *p;
X
X     Entry("strconcat")
X
X     p = malloc(strlen(s1) + strlen(s2) + 2);
X     sprintf(p, "%s %s", s1, s2);
X     free(s1);
X     free(s2);
X     s1 = p;
X     Leave(s1)
X}
X
X/*
X * Check a button expression for errors.
X */
Xint CheckButtonState(expr)
Xint expr;
X{
X     Entry("CheckButtonState")
X
X     /*
X      * Check for one (and only one) button.
X      */
X     switch (expr & (LeftMask | MiddleMask | RightMask)) {
X     case 0:
X      yyerror("no button specified");
X      break;
X     case LeftMask:
X      break;
X     case MiddleMask:
X      break;
X     case RightMask:
X      break;
X     default:
X      yyerror("more than one button specified");
X     }
X
X     /*
X      * Check for one (and only one) up/down/motion modifier.
X      */
X     switch (expr & (ButtonUp | ButtonDown | DeltaMotion)) {
X     case 0:
X      yyerror("no button action specified");
X      break;
X     case ButtonUp:
X      break;
X     case ButtonDown:
X      break;
X     case DeltaMotion:
X      break;
X     default:
X      yyerror("only one of up/down/motion may be specified");
X     }
X     Leave(expr)
X}
X
X/*
X * Bind button/key/context to a function.
X */
Xbindtofunc(index, mask, context, name)
Xint index;        /* Index into keyword table. */
Xint mask;        /* Button/key/modifier mask. */
Xint context;        /* ROOT, WINDOW, TITLE, ICON, GADGET or BORDER */
Xchar *name;        /* Menu, if needed. */
X{
X     Entry("bindtofunc")
X
X     setbinding(context, index, mask, name);
X     Leave_void
X}
X
X/*
X * Allocate a Binding type and return a pointer.
X */
XBinding *
X     AllocBinding()
X{
X     Binding *ptr;
X
X     Entry("AllocBinding")
X
X     if (!(ptr = (Binding *)calloc(1, sizeof(Binding)))) {
X      sprintf(msg, "Can't allocate binding--out of space\n");
X      yyerror(msg);
X      exit(1);
X     }
X     Leave(ptr)
X}
X
X/*
X * Stash the data in a Binding.
X */
Xsetbinding(cont, i, m, mname)
Xint cont;        /* Context: ROOT, WINDOW, or ICON. */
Xint i;            /* Keyword table index. */
Xint m;        /* Key/button/modifier mask. */
Xchar *mname;        /* Pointer to menu name, if needed. */
X{
X     Binding *ptr;
X     MenuInfo *mi;
X
X     Entry("setbinding")
X
X     ptr = AllocBinding();
X     ptr->context = cont;
X     ptr->mask = m;
X     ptr->func = KeywordTable[i].fptr;
X     ptr->menuname = mname;
X     switch (m & (LeftMask | MiddleMask | RightMask)) {
X     case LeftMask:
X      ptr->button = LeftButton;
X      break;
X     case MiddleMask:
X      ptr->button = MiddleButton;
X      break;
X     case RightMask:
X      ptr->button = RightButton;
X      break;
X     }
X     appendbinding(ptr);
X     Leave_void
X}
X
X/*
X * Append a Binding to the Bindings list.
X */
Xappendbinding(binding)
XBinding *binding;
X{
X     Binding *ptr;
X
X     Entry("appendbinding")
X
X     if (Blist == NULL)
X      Blist = binding;
X     else {
X      for(ptr = Blist; ptr->next; ptr = ptr->next) /* NULL */;
X      ptr->next = binding;
X      ptr = ptr->next;
X      ptr->next = NULL;
X     }
X     Leave_void
X}
X
X/*
X * Allocate an action line and return a pointer.
X */
XActionLine *AllocActionLine()
X{
X     ActionLine *ptr;
X
X     Entry("AllocActionLine")
X
X     if (!(ptr = (ActionLine *)calloc(1, sizeof(ActionLine)))) {
X      sprintf(msg, "Can't allocate action line--out of space\n");
X      yyerror(msg);
X     }
X     Leave(ptr)
X}
X
X/*
X * Allocate a MenuInfo structure and return a pointer.
X */
XMenuInfo *AllocMenuInfo()
X{
X     MenuInfo *ptr;
X
X     Entry("AllocMenuInfo")
X
X     if (!(ptr = (MenuInfo *)calloc(1, sizeof(MenuInfo)))) {
X      sprintf(msg, "Can't allocate menu storage--out of space\n");
X      yyerror(msg);
X     }
X     Leave(ptr)
X}
X
X/*
X * Allocate a MenuLink structure and return a pointer.
X */
XMenuLink *AllocMenuLink()
X{
X     MenuLink *ptr;
X
X     Entry("AllocMenuLink")
X
X     if (!(ptr = (MenuLink *)calloc(1, sizeof(MenuLink)))) {
X      sprintf(msg, "Can't allocate menu linked list storage--out of space\n");
X      yyerror(msg);
X     }
X     Leave(ptr)
X}
X
X/*
X * Return storage for Gadgets[] array.
X */
XGadgetDecl **allocate_gadgets()
X{
X     GadgetDecl **tmp;
X     int i;
X
X     Entry("allocate_gadgets")
X
X     tmp = (GadgetDecl **)malloc(MAX_GADGETS * sizeof(GadgetDecl *));
X     if (!tmp) {
X      sprintf(msg, "Can't allocate storage for Gadgets -- out of space\n");
X      yyerror(msg);
X      Leave(NULL)
X     }
X     for (i = 0; i < MAX_GADGETS; i++)
X      tmp[i] = (GadgetDecl *)0;
X     Leave(tmp)
X}
X
X/*
X * Stash a gadget record
X */
XGadgetDecl *stashGadget(n, s, type)
Xint n;
Xchar *s;
Xint type;
X{
X     GadgetDecl *tmp;
X
X     Entry("stashGadget")
X
X     if (!Gadgets)
X      Gadgets = (GadgetDecl **)allocate_gadgets();
X     if (n < 0 || n >= NumGadgets) {
X      sprintf(msg, "stashGadget on gadget #%d when maxgadget = %d\n",
X          n, NumGadgets);
X      yyerror(msg);
X      Leave(NULL)
X     }
X     if (Gadgets[n]) {
X      sprintf(msg, "gadget #%d redefined\n", n);
X      yywarn(msg);
X      FreeGadget(n);
X          tmp = Gadgets[n];
X     }
X     else
X      Gadgets[n] = tmp = (GadgetDecl *)malloc(sizeof(GadgetDecl));
X     if (!Gadgets[n]) {
X      sprintf(msg, "Can't allocate new gadget, out of space!\n");
X      yyerror(msg);
X      Leave(NULL)
X     }
X     tmp->data = (unsigned char *)NULL;
X     tmp->name = (unsigned char *)NULL;
X     tmp->high = tmp->wide = 0;
X     tmp->gravity = g_gravity;
X     tmp->offset = g_offset;
X     tmp->forecolor = g_forecolor;
X     tmp->backcolor = g_backcolor;
X     tmp->fontInfo = g_font;
X     if (type != C_STRING && type != C_PIXMAP) {
X      sprintf(msg, "Invalid gadget specification for gadget #%d\n", n);
X      yyerror(msg);
X      NumGadgets = 0;
X          Leave(NULL)
X     }
X     if (type == C_PIXMAP) {
X      int junk;
X      char *nm = s;
X
X      s = expand_from_path(s);
X      if (!s) {
X           sprintf(msg, "Can't find pixmap file '%s' for gadget #%d\n",
X               nm, n);
X           yywarn(msg);
X           tmp->data = (unsigned char *)gray_bits;
X           tmp->high = gray_height;
X           tmp->wide = gray_width;
X      }
X      else if (XReadBitmapFileData(s, &(tmp->wide),
X                  &(tmp->high), &(tmp->data), &junk, &junk)
X          != BitmapSuccess) {
X           sprintf(msg, "Can't open pixmap file '%s' for gadget #%d.\n", s, n);
X           yyerror(msg);
X           tmp->data = (unsigned char *)gray_bits;
X           tmp->high = gray_height;
X           tmp->wide = gray_width;
X      }
X      free(s);
X      if (tmp->high > gadgetHeight)
X           gadgetHeight = tmp->high;
X     }
X     else if (type == C_STRING) { /* it's a label */
X      tmp->name = expand_metachars(s);
X      if (!tmp->fontInfo) {
X           if (!GFontInfo) {
X            GFontInfo = GetFontRes("gadget.font", DEF_GADGET_FONT);
X            if (!GFontInfo) {
X             sprintf(msg, "Can't get a default gadget font.\n");
X             yyerror(msg);
X             Leave(NULL)
X            }
X           }
X           tmp->fontInfo = GFontInfo;
X      }
X      if (strlen(tmp->name) > 1) {
X           tmp->wide = XTextWidth(tmp->fontInfo, tmp->name, strlen(tmp->name));
X           tmp->high = tmp->fontInfo->max_bounds.ascent +
X            tmp->fontInfo->max_bounds.descent + 2;
X      }
X      else {
X           XCharStruct chinfo;
X           int asc, desc, dir;
X
X           XTextExtents(tmp->fontInfo, tmp->name, 1, &dir, &asc,
X                &desc, &chinfo);
X           tmp->wide = chinfo.width;
X           tmp->high = chinfo.ascent + chinfo.descent;
X      }
X      tmp->wide += 2 * GadgetBorder;
X          if (tmp->high > gadgetHeight)
X           gadgetHeight = tmp->high;
X     }
X     Leave(tmp)
X}
X
X/*
X * This routine expands '\' notation in a string, ala C. Mostly useful for
X * imbedding weird characters in strings that turn into interesting symbols
X * from some font. Unlike C, however, numeric constants (\nnn) are in
X * decimal, not octal. This was done because the most popular glyphs
X * (in cursorfont.h) are identified in decimal. There are some other cute
X * "metacharacters" that expand to the window name, icon name, etc.
X */
Xunsigned char *expand_metachars(s)
Xregister unsigned char *s;
X{
X     register int i, len, val, n;
X     unsigned char *cp, num[5];
X
X     Entry("expand_metachars")
X
X     if (!s)
X      Leave(s)
X     len = strlen(s);
X     for (i = 0; i < len; i++)
X      if (s[i] == '\\')
X           break;
X     if (i == len)
X      Leave(s)
X     /* we know the string is going to get shorter, len is correct */
X     cp = (unsigned char *)malloc(len);
X     i = n = 0;
X     while (*s) {
X      if (*s == '\\') {
X           s++;
X           while (*s && *s >= '0' && *s <= '9') {
X            num[n++] = *s;
X            s++;
X           }
X           if (n) {
X            if (n > 4)
X             n = 4;
X            num[n] = '\0';
X            cp[i++] = (char)atoi(num);
X            n = 0;
X           }
X           else if (*s) {
X            switch(*s) {
X
X            case 'b':
X             val = 8;
X             break;
X
X            case 'f':
X             val = 12;
X
X            case 'n':
X             val = 10;
X             break;
X
X            case 'r':
X             val = 13;
X             break;
X
X            case 't':
X             val = 9;
X             break;
X
X            default:
X             val = *s;
X             break;
X            }
X            cp[i++] = val;
X            s++;
X           }
X      }
X      else {
X           cp[i++] = *s;
X           s++;
X      }
X     }
X     cp[i] = '\0';
X     Leave(cp)
X}
X
X/*
X * Stash the data in an action line.
X */
XActionLine *StashActionLine(type, string)
Xint type;
Xchar *string;
X{
X     ActionLine *ptr;
X
X     Entry("StashActionLine")
X
X     ptr = AllocActionLine();
X     ptr->type = type;
X     ptr->text = string;
X     Leave(ptr)
X}
X
X/*
X * Stash menu data in a MenuInfo structure;
X */
XMenuInfo *stashmenuinfo(name, line, pixmap)
Xchar *name;
XActionLine *line;
Xchar *pixmap;
X{
X     MenuInfo *ptr;
X
X     Entry("stashmenuinfo")
X
X     ptr = AllocMenuInfo();
X     ptr->name = name;
X     ptr->line = line;
X     ptr->pixmapname = pixmap;
X     ptr->menu = 0;
X     Leave(ptr)
X}
X
X/*
X * Stash menu info data in a MenuLink structure;
X */
XMenuLink *stashmenulink(menuinfo)
XMenuInfo *menuinfo;
X{
X     MenuLink *ptr;
X
X     Entry("stashmenulink")
X
X     ptr = AllocMenuLink();
X     ptr->next = NULL;
X     ptr->menu = menuinfo;
X     Leave(ptr)
X}
X
X/*
X * Append an action line to a linked list of menu lines.
X */
XActionLine *appendmenuline(list, line)
XActionLine *list;
XActionLine *line;
X{
X     ActionLine *ptr;
X
X     Entry("appendmenuline")
X
X     if (list == NULL)
X      list = line;
X     else {
X      for(ptr = list; ptr->next; ptr = ptr->next) /* NULL */;
X      ptr->next = line;
X      ptr = ptr->next;
X      ptr->next = NULL;
X     }
X     Leave(list)
X}
X
X/*
X * Append a menu to a linked list of menus.
X */
XMenuLink *
X     appendmenulink(list, link)
XMenuLink *list;
XMenuLink *link;
X{
X     MenuLink *ptr;
X
X     Entry("appendmenulink")
X
X     if (list == NULL)
X      list = link;
X     else {
X      for(ptr = list; ptr->next; ptr = ptr->next) /* NULL */;
X      ptr->next = link;
X      ptr = ptr->next;
X      ptr->next = NULL;
X     }
X     Leave(list)
X}
X
X/*
X * Reset all previous bindings and free the space allocated to them.
X */
XBoolean ResetBindings()
X{
X     Binding *ptr, *nextptr;
X
X     Entry("ResetBindings")
X
X     for(ptr = Blist; ptr; ptr = nextptr) {
X      nextptr = ptr->next;
X      free(ptr);
X     }
X     Blist = NULL;
X     Leave_void
X}
X
X/*
X * De-allocate all menus.
X */
XBoolean ResetMenus()
X{
X     MenuLink *mptr, *next_mptr;
X     register ActionLine *lptr, *next_lptr;
X
X     Entry("ResetMenus")
X     if (!Menus)
X    Leave_void
X     for(mptr = Menus; mptr; mptr = next_mptr) {
X      free(mptr->menu->name);
X      RTLMenu_Destroy(mptr->menu->menu);
X      for(lptr = mptr->menu->line; lptr; lptr = next_lptr) {
X           free(lptr->name);
X           if (lptr->text) free(lptr->text);
X           next_lptr = lptr->next;
X           free(lptr);
X      }
X      next_mptr = mptr->next;
X      free(mptr);
X     }
X     Menus = NULL;
X     Leave_void
X}
END_OF_awm/gram.y
if test 26836 -ne `wc -c <awm/gram.y`; then
    echo shar: \"awm/gram.y\" unpacked with wrong size!
fi
# end of overwriting check
fi
echo shar: End of archive 10 \(of 13\).
cp /dev/null ark10isdone
MISSING=""
for I in 1 2 3 4 5 6 7 8 9 10 11 12 13 ; do
    if test ! -f ark${I}isdone ; then
    MISSING="${MISSING} ${I}"
    fi
done
if test "${MISSING}" = "" ; then
    echo You have unpacked all 13 archives.
    rm -f ark[1-9]isdone ark[1-9][0-9]isdone
else
    echo You still need to unpack the following archives:
    echo "        " ${MISSING}
fi
##  End of shell archive.
exit 0
Mike Wexler(wyse!mikew)    Phone: [phone] x1330