From 079bd1d6843aa9a89df9f2c3e2e4a42c56794b64 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Wed, 13 Feb 2019 00:23:21 +0100
Subject: Handle frame options properly

---
 src/storycode.l | 10 +++++++++-
 src/storycode.y | 47 +++++++++++++++++++++++++++++++++++------------
 2 files changed, 44 insertions(+), 13 deletions(-)

(limited to 'src')

diff --git a/src/storycode.l b/src/storycode.l
index e470daa..a64fbec 100644
--- a/src/storycode.l
+++ b/src/storycode.l
@@ -45,13 +45,21 @@ PAD               { return SC_PAD; }
 ALIGN             { return SC_ALIGN; }
 FGCOL             { return SC_FGCOL; }
 BGCOL             { return SC_BGCOL; }
+(?i:left)         { return SC_LEFT; }
+(?i:center)       { return SC_CENTER; }
+(?i:right)        { return SC_RIGHT; }
 <string>.*\n      { sclval = strdup(yytext); sclval[yyleng-1] = '\0'; BEGIN(0); return SC_STRING; }
-"[".*"]"          { sclval = strdup(yytext); return SC_FRAMEOPTS; }
+"["               { return SC_SQOPEN; }
+"]"               { return SC_SQCLOSE; }
 :[ ]              { BEGIN(string); }
 :\n               { sclval = strdup(""); return SC_STRING; }
 [{]               { return SC_OPENBRACE; }
 [}]               { return SC_CLOSEBRACE; }
 [.\n ]            {}
+[0-9\.]+          { /* FIXME: lval */ return SC_VALUE; }
+[uf]              { return SC_UNIT; }
+[+]               { return SC_PLUS; }
+[x]               { return SC_TIMES; }
 
 
 %%
diff --git a/src/storycode.y b/src/storycode.y
index 8146a6a..cbd952a 100644
--- a/src/storycode.y
+++ b/src/storycode.y
@@ -28,8 +28,7 @@
 
 %define api.value.type {char *}
 %define api.token.prefix {SC_}
-%token STYLES
-%token SLIDE
+%token STYLES SLIDE
 %token NARRATIVE
 %token PRESTITLE
 %token SLIDETITLE
@@ -38,17 +37,15 @@
 %token IMAGEFRAME
 %token BP
 
-%token FRAMEOPTS
+%token FONT TYPE PAD ALIGN FGCOL BGCOL
 
-%token FONT
-%token TYPE
-%token PAD
-%token ALIGN
-%token FGCOL
-%token BGCOL
+%token LEFT CENTER RIGHT
 
 %token STRING
 %token OPENBRACE CLOSEBRACE
+%token SQOPEN SQCLOSE
+%token PLUS TIMES
+%token UNIT VALUE
 
 %%
 
@@ -115,18 +112,44 @@ textframe:
 multi_line_string:
   STRING { printf("string '%s'\n", $1); }
 | multi_line_string STRING { printf("more string '%s'\n", $2); }
-| bulletpoint
-| multi_line_string bulletpoint
+| bulletpoint { printf("string *%s\n", $1); }
+| multi_line_string bulletpoint { printf("more string *%s\n", $1); }
 ;
 
+/* There can be any number of options */
 frame_options:
-  FRAMEOPTS { printf("got some options: '%s'\n", $1); }
+  %empty
+| frame_options frame_option
+;
+
+/* Each option is enclosed in square brackets */
+frame_option:
+  SQOPEN frameopt SQCLOSE { printf("got an option: '%s'\n", $2); }
+;
+
+frameopt:
+  geometry
+| alignment
+;
+
+geometry:
+  length TIMES length PLUS length PLUS length { $$ = "geom"; printf("Geometry\n"); }
+;
+
+alignment:
+  LEFT
+| CENTER
+| RIGHT
 ;
 
 slidetitle:
   SLIDETITLE STRING { $$ = $2; }
 ;
 
+length:
+  VALUE UNIT
+;
+
 
 /* ------ Stylesheet ------ */
 
-- 
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