version 1.28, 2011/04/30 10:18:25 |
version 1.30, 2011/07/28 14:17:11 |
Line 448 than having the request or macro follow as |
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Line 448 than having the request or macro follow as |
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The scope of a conditional is always parsed, but only executed if the |
The scope of a conditional is always parsed, but only executed if the |
conditional evaluates to true. |
conditional evaluates to true. |
.Pp |
.Pp |
Note that text following an |
Note that the |
.Sq \&.\e} |
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escape sequence is discarded. |
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Furthermore, if an explicit closing sequence |
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.Sq \e} |
.Sq \e} |
is specified in a free-form line, the entire line is accepted within the |
is converted into a zero-width escape sequence if not passed as a |
scope of the prior request, not only the text preceding the close, with the |
standalone macro |
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.Sq \&.\e} . |
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For example, |
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.Pp |
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.D1 \&.Fl a \e} b |
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.Pp |
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will result in |
.Sq \e} |
.Sq \e} |
collapsing into a zero-width space. |
being considered an argument of the |
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.Sq \&Fl |
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macro. |
.Ss \&ig |
.Ss \&ig |
Ignore input. |
Ignore input. |
Its syntax can be either |
Its syntax can be either |
Line 579 This line-scoped request can take an arbitrary number |
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Line 584 This line-scoped request can take an arbitrary number |
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Currently, it is ignored including its arguments. |
Currently, it is ignored including its arguments. |
.Ss \&tr |
.Ss \&tr |
Output character translation. |
Output character translation. |
This request is intended to have one argument, |
Its syntax is as follows: |
consisting of an even number of characters. |
.Pp |
Currently, it is ignored including its arguments, |
.D1 Pf \. Cm \&tr Ar [ab]+ |
and the number of arguments is not checked. |
.Pp |
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Pairs of |
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.Ar ab |
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characters are replaced |
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.Ar ( a |
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for |
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.Ar b ) . |
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Replacement (or origin) characters may also be character escapes; thus, |
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.Pp |
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.Dl tr \e(xx\e(yy |
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.Pp |
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replaces all invocations of \e(xx with \e(yy. |
.Ss \&T& |
.Ss \&T& |
Re-start a table layout, retaining the options of the prior table |
Re-start a table layout, retaining the options of the prior table |
invocation. |
invocation. |