⌧tagparameter(
⌧tagparameter(
TEXT
,
TAG
,
ITEM
)

The ⌧tagparameter( function extracts the value of a tag parameter embedded in sometext, where the tag parameter takes the form name=value.

Parameters

This function has three parameters:

text – is the item of text that contains the data you want to extract.

tag – is the name of the tag parameter you want to extract, including the trailing = sign (you may use other terminators, for example colons (`font:Helvetica`) or period (`font.Helvetica`). For example, if you want to extract the font name from the text `font=Helvetica size=12` the tag would be `font=`.

item – is the number of the parameter you want to extract. This is usually 1, but may be other values if you expect multiple instances of the parameter (multiple fonts, for example).

Description

The tagparameter( function extracts the value of a tag parameter embedded in some text, where each tag parameter takes the form name=value. This function returns the contents (text) of the specified parameter. If the parameter is surrounded by quotes, the quotes are removed. (Quotes are necessary if the parameter value contains spaces, for example `font="Times Roman"`. Allowed quote characters include double quotes (`"`), single quotes (`'`), single and double smart quotes (`“” ‘’`), curly brackets (`{}`) and multiple pipe characters (|).

This example very quickly builds a list of all the GIF and JPEG images displayed in the page HTMLPage.

    local imageTags,imageNames
    imageTag=tagarray(HTMLPage,"<IMG",">",cr())
    arrayfilter imageTag,imageNames,cr(),tagparameter( import(), "src=",1)

See Also

- gettaglocation
- gettaglocations
- settagdata
- setxtagvalue
- tagarray(
- tagcount(
- tagdata(
- tagend(
- tagnumber(
- tagparameter(
- tagstart(
- tagstrip(
- xtag(
- xtagvalue(

History

Version | Status | Notes
1.0 | No Change | Carried over from Panorama 6.0