Changes between Version 42 and Version 43 of Help/Styles/MapCSSImplementation

Timestamp:

2014-03-06T21:47:05+01:00 (11 years ago)

Author:

bastiK

Comment:

update Expression functions

Help/Styles/MapCSSImplementation

@@ -868 +868 @@
  rgb(''r'', ''g'', ''b'')::
   create color value (arguments from 0.0 to 1.0)
+ hsb_color(''h'', ''s'', ''b'')::
+  create color from hue, saturation and brightness (arguments from 0.0 to 1.0) [''since 6877'']
  red(''clr''), green(''clr''), blue(''clr'')::
   get value of color channels in rgb color model
@@ -876 +878 @@
  length(''lst'')::
   length of a list [''since 5699'']
+ coalesce(obj1, obj2, ...)::
+  returns the first object which is not null [''since 6611'']
  concat(''str1'', ''str2'', ...)::
   assemble the strings to one
+ join(''sep'', ''str1'', ''str2'', ...)::
+  join strings, whith ''sep'' as separator [''since 6737'']
  JOSM_search("...")::
   true, if JOSM search applies to the object
+ tr(str, arg0, arg1, ...)::
+  translate from English to the current language (only for strings in the JOSM user interface) [''since 6506'']
  regexp_test(regexp, string)::
   test if ''string'' matches pattern ''regexp'' [''since 5699'']
@@ -888 +896 @@
  regexp_match(regexp, string, flags)::
   Tries to match ''string'' against pattern ''regexp''. Returns a list of capture groups in case of success. The first element (index 0) is the complete match (i.e. ''string''). Further elements correspond to the bracketed parts of the regular expression. Flags is a string that may contain "i" (case insensitive), "m" (multiline) and "s" ("dot all") [''since 5701'']
+ substring(str, idx)::
+  return the substring of ''str'', starting at index ''idx'' (0-indexed) [''since 6534'']
+ substring(str, start, end)::
+  return the substring of ''str'', starting at index ''start'' (inclusive) up to ''end'' (exclusive) (0-indexed) [''since 6534'']
  replace(string, old, new)::
    Replaces any occurrence of the substring ''old'' within the string ''string'' with the text ''new'' 
  osm_id()::
   returns the OSM id of the current object [''since 5699'']
+ URL_encode(str)::
+  [https://en.wikipedia.org/wiki/Percent-encoding percent-encode] a string. May be useful for data URLs [''since 6805'']
+ XML_encode(str)::
+  escape special characters in xml. E.g. {{{<}}} becomes {{{&lt;}}}, other special characters: {{{>}}}, {{{"}}}, {{{'}}}, {{{&}}}, {{{\n}}}, {{{\t}}} and {{{\r}}} [''since 6809'']
+ CRC32_checksum(''str'')::
+  calculate the CRC32 checksum of a string (result is an integer from 0 to 2^32^-1) [''since 6899'']
 {{{#!comment: untested
  JOSM_pref(''key'', ''default'')