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drykup.coffee
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drykup.coffee
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###
File: drykup.coffee
Author: Mark Hahn
DryCup is a CoffeeScript html generator compatible with CoffeeKup but without the magic.
DryKup is open-sourced via the MIT license.
See https://github.com/mark-hahn/drykup
###
# ------------------- Constants stolen from coffeeKup (Release 0.3.2) ---------------------
# ----------------------------- See KOFFEECUP-LICENSE file --------------------------------
# Values available to the `doctype` function inside a template.
# Ex.: `doctype 'strict'`
doctypes =
'default': '<!DOCTYPE html>'
'5': '<!DOCTYPE html>'
'xml': '<?xml version="1.0" encoding="utf-8" ?>'
'transitional': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
'strict': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'
'frameset': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">'
'1.1': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
'basic': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">'
'mobile': '<!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.2//EN" "http://www.openmobilealliance.org/tech/DTD/xhtml-mobile12.dtd">'
'ce': '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "ce-html-1.0-transitional.dtd">'
# Private HTML element reference.
# Please mind the gap (1 space at the beginning of each subsequent line).
elements =
# Valid HTML 5 elements requiring a closing tag.
# Note: the `var` element is out for obvious reasons, please use `tag 'var'`.
regular: 'a abbr address article aside audio b bdi bdo blockquote body button
canvas caption cite code colgroup datalist dd del details dfn div dl dt em
fieldset figcaption figure footer form h1 h2 h3 h4 h5 h6 head header hgroup
html i iframe ins kbd label legend li map mark menu meter nav noscript object
ol optgroup option output p pre progress q rp rt ruby s samp script section
select small span strong sub summary sup table tbody td textarea tfoot
th thead time title tr u ul video'
# Valid self-closing HTML 5 elements.
void: 'area base br col command embed hr img input keygen link meta param
source track wbr'
obsolete: 'applet acronym bgsound dir frameset noframes isindex listing
nextid noembed plaintext rb strike xmp big blink center font marquee multicol
nobr spacer tt'
obsolete_void: 'basefont frame'
# Create a unique list of element names merging the desired groups.
merge_elements = (args...) ->
result = []
for a in args
for element in elements[a].split ' '
result.push element unless element in result
result
# ------------------- constants for shorthand aliases -------------------------
attrAliases =
w:'width', h:'height', s:'src', src:'src', hr:'href', href:'href', c:'class', db:'data-bind'
i:'id', n:'name', v:'value', m:'method', t:'type'
cp:'cellpadding', b:'border', cs:'colspan', rs:'rowspan', chk:'checked', sel:'selected'
styleValueAliases =
'm:a':'margin:auto', 'ml:a':'margin-left:auto', 'mt:a':'margin-top:auto'
'mr:a':'margin-right:auto', 'mb:a':'margin-bottom:auto'
'c:b':'clear:both', 'f:l':'float:left', 'f:r':'float:right', 'f:n':'float:none'
'fw:b':'font-weight:bold', 'fw:n':'font-weight:normal'
'fs:i':'font-style:italic', 'fs:n':'font-style:normal'
'p:a':'position:absolute', 'p:r':'position:relative', 'p:f':'position:fixed'
'd:n':'display:none', 'd:b':'display:block', 'd:f':'display:fixed'
'ta:l':'text-align:left', 'ta:c':'text-align:center', 'ta:r':'text-align:right'
'o:a':'overflow:auto', 'o:h':'overflow:hidden'
'c:a':'cursor:auto', 'c:p':'cursor:pointer'
'tt:u':'text-transform:uppercase', 'tt:c':'text-transform:capitalize'
'tt:l':'text-transform:lowercase'
'td:n':'text-decoration:none', 'td:u':'text-decoration:underline'
'td:lt':'text-decoration: line-through', 'lh:n':'line-height:normal'
'b:n': 'border:none'
'b:1pxsb' :'border:1px solid black'
'bl:1pxsb':'border-left:1px solid black', 'bt:1pxsb':'border-top:1px solid black'
'br:1pxsb':'border-right:1px solid black', 'bb:1pxsb':'border-bottom:1px solid black'
'b:1pxsg' :'border:1px solid gray'
'bl:1pxsg':'border-left:1px solid gray', 'bt:1pxsg':'border-top:1px solid gray'
'br:1pxsg':'border-right:1px solid gray', 'bb:1pxsg':'border-bottom:1px solid gray'
'zi:a':'z-index:auto', 'zi:i':'z-index:inherit'
'v:v':'visibility:visible', 'v:h':'visibility:hidden'
styleAliases =
l:'left', t:'top', r:'right', w:'width', h:'height', c:'color', bc:'background-color', bot:'bottom'
fs:'font-size', lh:'line-height', zi:'z-index'
b:'border', bl:'border-left', bt:'border-top', br:'border-right', bb:'border-bottom'
m:'margin', ml:'margin-left', mt:'margin-top', mr:'margin-right', mb:'margin-bottom'
p:'padding', pl:'padding-left', pt:'padding-top', pr:'padding-right', pb:'padding-bottom'
v:'visibility', ff:'font-family'
# ---------------------------- alias shorthand expansion code ---------------------------------
whiteSpace = (str) ->
str.replace(/([^~])\+/g, '$1 ').replace(/~\+/g, '+')
expandAttrs = (v = '', styleOnly = false) ->
attrs = {}; styles = {}
v = v.replace /\s+/g, '~`~'
parts = v.split '~`~'
for part in parts
if not (thirds = ///^ ([^=:]*) (=|:) (.*) $///.exec part) then continue
[d, name, sep, value] = thirds
if not styleOnly and sep == '='
if name == 'in'
attrs.id = value
attrs.name = value
else
if (aa = attrAliases[name]) then name = aa
attrs[name] = whiteSpace value
if sep == ':'
if (sva = styleValueAliases[part]) then [name, value] = sva.split ':'
else
if (sa = styleAliases[name]) then name = sa
if name not in ['z-index','opacity'] and
/^(-|\+)?(\d|\.)+$/.test value then value = value + 'px'
else value = whiteSpace value
styles[name] = value
style = ("#{k}:#{v}" for k, v of styles).join '; '
if styleOnly then return style
if style then attrs['style'] = style
attrs
expandStyle = (v) ->
s = ''
while parts = v.match(///^ ([^{]*) \{ ([^}]*) \} ([\s\S]*) $///)
[x, pfx, style, v] = parts
s += pfx + '{' + expandAttrs(style, true) + '}'
s + v
extendX = (newSpecStrs = {}, oldSpecStrs = {}) ->
for key, newSpecStr of newSpecStrs
if not (oldSpecStr = oldSpecStrs[key]) then oldSpecStrs[key] = newSpecStr; continue
specsObj = {}
addSpecStr = (specStr) ->
for spec in (specStr.replace(/\s+/g, '~`~').split '~`~')
if not (specParts = ///^ ([^=:]*(=|:)) (.*) $///.exec spec) then continue
specsObj[specParts[1]] = specParts[3]
null
addSpecStr oldSpecStr
addSpecStr newSpecStr
oldSpecStrs[key] = (nameSep + val for nameSep, val of specsObj).join ' '
oldSpecStrs
# -------------------------------- main drykup code ------------------------------
class Drykup
constructor: (opts = {}) ->
@indent = opts.indent ? ''
@htmlOut = opts.htmlOut ? ''
@expand = opts.expand ? false
resetHtml: (html = '') -> @htmlOut = html
defineGlobalTagFuncs: -> if window then for name, func of @ then window[name] = func
addText: (s) -> if s then @htmlOut += @indent + s + '\n'; ''
attrStr: (obj) ->
attrstr = ''
for name, val of obj
if @expand and name is 'x' then attrstr += @attrStr expandAttrs val
else
vstr = val.toString()
q = (if vstr.indexOf('"') isnt -1 then "'" else '"')
attrstr += ' ' + name + '=' + q + vstr + q
attrstr
normalTag: (tagName, args) ->
attrstr = innertext = ''
func = null
for arg in args
switch typeof arg
when 'undefined','null' then continue
when 'string', 'number' then innertext = arg
when 'function' then func = arg
when 'object' then attrstr += @attrStr arg
else console.log 'DryKup: invalid argument, tag ' + tagName + ', ' + arg.toString()
@htmlOut += @indent + '<' + tagName + attrstr + '>'
if func and tagName isnt 'textarea'
@htmlOut += '\n'
@indent += ' '
@addText innertext
func?()
@indent = @indent[0..-3]
@addText '</' + tagName + '>'
else
@htmlOut += innertext + '</' + tagName + '>' + '\n'
selfClosingTag: (tagName, args) ->
attrstr = ''
for arg in args
if not arg? then continue
if typeof arg is 'object' then attrstr += @attrStr arg
else console.log 'DryKup: invalid argument, tag ' + tagName + ', ' + arg.toString()
@addText '<' + tagName + attrstr + ' />' + '\n'
styleFunc: (str) ->
if typeof str isnt 'string'
# console.log 'DryKup: invalid argument, tag style, ' + str.toString()
return
@addText '<style>' + (if @expand then expandStyle str else str)+'\n' + @indent + '</style>'
extendX: (newSpecStrs = {}, oldSpecStrs = {}) ->
for key, newSpecStr of newSpecStrs
if not (oldSpecStr = oldSpecStrs[key]) then oldSpecStrs[key] = newSpecStr; continue
specsObj = {}
addSpecStr = (specStr) ->
for spec in (specStr.replace(/\s+/g, '~`~').split '~`~')
if not (specParts = ///^ ([^=:]*(=|:)) (.*) $///.exec spec) then continue
specsObj[specParts[1]] = specParts[3]
null
addSpecStr oldSpecStr
addSpecStr newSpecStr
oldSpecStrs[key] = (nameSep + val for nameSep, val of specsObj).join ' '
oldSpecStrs
drykup = (opts) ->
dk = new Drykup(opts)
dk.doctype = (type) -> dk.addText doctypes[type]
dk.text = (s) -> dk.addText s
dk.coffeescript = -> dk.addText 'coffeescript tag not implemented'
dk.style = (s) -> dk.styleFunc s
for tagName in merge_elements 'regular', 'obsolete'
do (tagName) ->
dk[tagName] = (args...) -> dk.normalTag tagName, args
for tagName in merge_elements 'void', 'obsolete_void'
do (tagName) ->
dk[tagName] = (args...) -> dk.selfClosingTag tagName, args
dk
drykup.extendX = extendX
if module?.exports
module.exports = drykup
else
window.drykup = drykup