Mercurial Hosting > luan
changeset 1289:8d54bcc0b6d3
add css style parser
author | Franklin Schmidt <fschmidt@gmail.com> |
---|---|
date | Mon, 31 Dec 2018 20:59:08 -0700 |
parents | 8432d20a2729 |
children | fb802d8aba0b |
files | src/luan/modules/parsers/Css.java src/luan/modules/parsers/Html.java |
diffstat | 2 files changed, 72 insertions(+), 11 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/luan/modules/parsers/Css.java Mon Dec 31 20:59:08 2018 -0700 @@ -0,0 +1,59 @@ +package luan.modules.parsers; + +import luan.LuanState; +import luan.LuanTable; +import luan.lib.parser.Parser; + + +public final class Css { + + public static LuanTable style(LuanState luan,String text) { + return new Css(luan,text).parseStyle(); + } + + private final LuanState luan; + private final Parser parser; + + private Css(LuanState luan,String text) { + this.luan = luan; + this.parser = new Parser(text); + } + + private LuanTable parseStyle() { + LuanTable tbl = new LuanTable(luan); + while( matchSpace() ); + while( !parser.endOfInput() ) { + int start = parser.currentIndex(); + if( !matchPropertyChar() ) + return null; + while( matchPropertyChar() ); + String prop = parser.textFrom(start).toLowerCase(); + + while( matchSpace() ); + if( !parser.match(':') ) + return null; + + start = parser.currentIndex(); + while( !parser.endOfInput() && parser.noneOf(";") ); + String val = parser.textFrom(start).trim(); + + tbl.rawPut(prop,val); + parser.match(';'); + while( matchSpace() ); + } + return tbl; + } + + private boolean matchPropertyChar() { + return parser.inCharRange('a','z') + || parser.inCharRange('A','Z') + || parser.inCharRange('0','9') + || parser.anyOf("_-") + ; + } + + private boolean matchSpace() { + return parser.anyOf(" \t\r\n"); + } + +}
--- a/src/luan/modules/parsers/Html.java Mon Dec 31 18:39:04 2018 -0700 +++ b/src/luan/modules/parsers/Html.java Mon Dec 31 20:59:08 2018 -0700 @@ -7,14 +7,11 @@ import luan.LuanState; import luan.LuanTable; import luan.lib.parser.Parser; -import luan.lib.parser.ParseException; public final class Html { - public static LuanTable toList(LuanState luan,String text,LuanTable containerTagsTbl) - throws ParseException - { + public static LuanTable toList(LuanState luan,String text,LuanTable containerTagsTbl) { return new Html(luan,text,containerTagsTbl).parse(); } @@ -30,7 +27,7 @@ } } - private LuanTable parse() throws ParseException { + private LuanTable parse() { List list = new ArrayList(); StringBuilder sb = new StringBuilder(); while( !parser.endOfInput() ) { @@ -120,6 +117,8 @@ } private LuanTable parseTag() { + LuanTable tbl = new LuanTable(luan); + tbl.rawPut("type","tag"); int tagStart = parser.begin(); if( !parser.match('<') ) return parser.failure(null); @@ -129,22 +128,25 @@ return parser.failure(null); while( matchNameChar() ); String name = parser.textFrom(start).toLowerCase(); + tbl.rawPut("name",name); LuanTable attributes = new LuanTable(luan); + tbl.rawPut("attributes",attributes); String attrName; while( (attrName = parseAttrName()) != null ) { String attrValue = parseAttrValue(); attributes.rawPut( attrName, attrValue!=null ? attrValue : true ); + if( attrName.equals("style") && attrValue!=null ) { + LuanTable style = Css.style(luan,attrValue); + if( style!=null ) + tbl.rawPut("style",style); + } } while( matchSpace() ); boolean isEmpty = parser.match('/'); + tbl.rawPut("is_empty",isEmpty); if( !parser.match('>') ) return parser.failure(null); String raw = parser.textFrom(tagStart); - LuanTable tbl = new LuanTable(luan); - tbl.rawPut("type","tag"); - tbl.rawPut("name",name); - tbl.rawPut("attributes",attributes); - tbl.rawPut("is_empty",isEmpty); tbl.rawPut("raw",raw); return parser.success(tbl); } @@ -158,7 +160,7 @@ if( !matchNameChar() ) return parser.failure(null); while( matchNameChar() ); - String name = parser.textFrom(start); + String name = parser.textFrom(start).toLowerCase(); return parser.success(name); }