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| author | Kaz Kylheku <kaz@kylheku.com> | 2021-06-11 07:36:02 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2021-06-11 07:36:02 -0700 |
| commit | f7c05ba9ec1634ec6d127e8e5b3edafc834ab2f0 (patch) | |
| tree | a8d075b8534b2ebfa03ca8a121865802a9f1bc35 /txr.1 | |
| parent | 1a583e55bddab7b2146a7a3bfb51e7fcda87608b (diff) | |
| download | txr-f7c05ba9ec1634ec6d127e8e5b3edafc834ab2f0.tar.gz txr-f7c05ba9ec1634ec6d127e8e5b3edafc834ab2f0.tar.bz2 txr-f7c05ba9ec1634ec6d127e8e5b3edafc834ab2f0.zip | |
pic: allow trailing exclamation.
* share/txr/stdlib/pic.tl (expand-pic-num, expand-pic, pic):
Allow ### to be followed by a single !. This is not counted
toward the field width.
* tests/018/format.tl: Cover with some tests.
* txr.1: Doc updated.
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 37 |
1 files changed, 23 insertions, 14 deletions
@@ -54889,7 +54889,7 @@ The numeric patterns are more complex. They conform to one of the two following syntactic rule: .mono -.mets <> [ sign ] [0] {#}+ >> [ point {#}+] +.mets <> [ sign ] [0] {#}+ >> [ point {#}+ | !] .onom The pattern consists of an optional @@ -54902,27 +54902,32 @@ which is one of the characters After this comes a sequence of one or more .code # (hash) characters, which may contain exactly one -.metn point . -This -.meta point -element may appear at most once, and must not be the first or -last character. The .meta point -element is defined as one of the characters +element, which is defined as one of the characters .code . (period) or .code ! -(exclamation mark). The entire numeric pattern contains no whitespace. +(exclamation mark). +This +.meta point +element may appear at most once, and must not be the first or +last character, unless is is the exclamation mark, +in which case it may appear last. -A numeric pattern specifies a field width which is equal to the number -of characters occurring in the pattern itself. +Except if ending in the exclamation mark, a numeric pattern specifies a field +width which is equal to the number of characters occurring in the pattern +itself. For instance, the patterns .codn #### , .code +### and .code 0#.# -all specify a field width of four. +all specify a field width of four. If the numeric pattern ends in an exclamation +mark, that character is not counted toward the field width that it specifies. +Thus the pattern +.code ###! +specifies a field width of three. If the leading sign is present, it has the following meanings: .RS @@ -54959,9 +54964,13 @@ The number is rounded to that many fractional digits, which are all rendered, even if there are trailing zeros. If no .meta point -is not specified, then the number of fractional digits is zero. The -numeric argument is rounded to integer, and rendered without any decimal -point or fractional part. +is not specified, then the number of fractional digits is zero. The same is +true if +.meta point +is specified as +.code ! +as the last character. In both cases, the numeric argument is rounded to +integer, and rendered without any decimal point or fractional part. Finally, there is a difference between .meta point |