14.8.2.5 Stripping character formats from index entries

Still another version of macro [ProcIXtext] removes character-format names from index-marker content, as well as processing colons:

	[ProcIXtext]
1	<$$IXlevel = 1>
2	<$_while ($$IXtext)>
3	<index<$$IXlevel>>	Opening XML tag
4	<$_repeat>
5	<$_if not ($$IXtext)><$_break>
6	<$_elseif ($$IXtext starts "\\:")>
7	:	Text colon output
8	<$$IXtext = ($$IXtext trim first 3)>
9	<$_elseif ($$IXtext starts ":")>
10	<$$IXtext = ($$IXtext trim first)>
11	<$_break>
12	<$_elseif ($$IXtext starts "<")>
13	<$$IXtext = ($$IXtext after ">")>
14	<$_else>
15	<$($$IXtext first)>	Text character output
16	<$$IXtext = ($$IXtext trim first)>
17	<$_endif>
18	<$_endrepeat>
19	</index<$$IXlevel>>	Closing XML tag
20	<$$IXlevel++>
21	<$_endwhile>

This version uses a negative conditional expression to check for the end of each index entry, and uses the starts operator instead of the first operator; see:

§28.6.4.2 Using conditional expressions

§28.6.5 Specifying substrings in expressions)

Text colons are output on line 7; all other text is output on line 15, one character at a time.

Some first (line 15) and trim first (line 10 and line 16) expressions in this version appear without a second operand; these expressions assume an implied value of 1 (one) for the second operand.

 

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