version 1.42, 2013/08/08 20:07:47 |
version 1.45, 2013/12/15 21:23:52 |
Line 638 Begin an equation block. |
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Line 638 Begin an equation block. |
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See |
See |
.Xr eqn 7 |
.Xr eqn 7 |
for a description of the equation language. |
for a description of the equation language. |
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.Ss \&fam |
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Change the font family. |
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This line-scoped request is intended to have one argument specifying |
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the font family to be selected. |
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It is a groff extension, and currently, it is ignored including its |
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arguments, and the number of arguments is not checked. |
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.Ss \&hw |
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Specify hyphenation points in words. |
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This line-scoped request is currently ignored. |
.Ss \&hy |
.Ss \&hy |
Set automatic hyphenation mode. |
Set automatic hyphenation mode. |
This line-scoped request is currently ignored. |
This line-scoped request is currently ignored. |
Line 805 the name of the request, macro or string to be undefin |
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Line 814 the name of the request, macro or string to be undefin |
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Currently, it is ignored including its arguments, |
Currently, it is ignored including its arguments, |
and the number of arguments is not checked. |
and the number of arguments is not checked. |
.Ss \&nr |
.Ss \&nr |
Define a register. |
Define or change a register. |
A register is an arbitrary string value that defines some sort of state, |
A register is an arbitrary string value that defines some sort of state, |
which influences parsing and/or formatting. |
which influences parsing and/or formatting. |
Its syntax is as follows: |
Its syntax is as follows: |
.Pp |
.Pp |
.D1 Pf \. Cm \&nr Ar name Ar value |
.D1 Pf \. Cm \&nr Ar name Oo +|- Oc Ns Ar value |
.Pp |
.Pp |
The |
The |
.Ar value |
.Ar value |
may, at the moment, only be an integer. |
may, at the moment, only be an integer. |
So far, only the following register |
If it is prefixed by a sign, the register will be |
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incremented or decremented instead of assigned to. |
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.Pp |
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The following register |
.Ar name |
.Ar name |
is recognised: |
is handled specially: |
.Bl -tag -width Ds |
.Bl -tag -width Ds |
.It Cm nS |
.It Cm nS |
If set to a positive integer value, certain |
If set to a positive integer value, certain |