Add missing documentation for syntax highlighting

`HIGHLIGHT_STYLE`, `HIGHLIGHT_OPTIONS` and `PYGMENTIZE_STYLE` affect
ranger and should therefore be documented in the manual.

2 files changed, 73 insertions, 11 deletions

diff --git a/doc/ranger.1 b/doc/ranger.1
index 43a13659..69109cf2 100644
--- a/doc/ranger.1
+++ b/doc/ranger.1
@@ -1,4 +1,4 @@
-.\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
+.\" Automatically generated by Pod::Man 4.10 (Pod::Simple 3.35)
 .\"
 .\" Standard preamble:
 .\" ========================================================================
@@ -54,16 +54,20 @@
 .\" Avoid warning from groff about undefined register 'F'.
 .de IX
 ..
-.if !\nF .nr F 0
-.if \nF>0 \{\
-.    de IX
-.    tm Index:\\$1\t\\n%\t"\\$2"
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+.    if \nF \{\
+.        de IX
+.        tm Index:\\$1\t\\n%\t"\\$2"
 ..
-.    if !\nF==2 \{\
-.        nr % 0
-.        nr F 2
+.        if !\nF==2 \{\
+.            nr % 0
+.            nr F 2
+.        \}
 .    \}
 .\}
+.rr rF
 .\"
 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
 .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
@@ -129,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "RANGER 1"
-.TH RANGER 1 "ranger-1.9.2" "2019-04-23" "ranger manual"
+.TH RANGER 1 "ranger-1.9.2" "2019-05-17" "ranger manual"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -169,7 +173,7 @@ plugins, sample configuration files and some programs for integrating ranger
 with other software.  They are usually installed to
 \&\fI/usr/share/doc/ranger/examples\fR.
 .PP
-The man page of \fIrifle\fR\|(1) describes the functions of the file opener
+The man page of \fBrifle\fR\|(1) describes the functions of the file opener
 .PP
 The section \fI\s-1LINKS\s0\fR of this man page contains further resources.
 .SH "POSITIONAL ARGUMENTS"
@@ -1630,6 +1634,34 @@ the \*(L"S\*(R" key.  Defaults to \*(L"/bin/sh\*(R".
 .IX Item "TERMCMD"
 Defines the terminal emulator command that ranger is going to use with the
 :terminal command and the \*(L"t\*(R" run flag.  Defaults to \*(L"xterm\*(R".
+.IP "\s-1PYGMENTIZE_STYLE\s0" 8
+.IX Item "PYGMENTIZE_STYLE"
+Specifies the theme to be used for syntax highlighting when \fIpygmentize\fR is
+installed unless \fIhighlight\fR is also installed, possible values (find out by
+running \f(CW\*(C`pygments.styles.get_all_styles()\*(C'\fR): abap, algol, algol_nu, arduino,
+autumn, borland, bw, colorful, emacs, friendly, fruity, igor, lovelace, manni,
+monokai, murphy, native, paraiso-dark, paraiso-light, pastie, perldoc,
+rainbow_dash, rrt, tango, trac, vim, vs and xcode.
+.IP "\s-1HIGHLIGHT_STYLE\s0" 8
+.IX Item "HIGHLIGHT_STYLE"
+Specifies the theme to be used for syntax highlighting when \fIhighlight\fR is
+installed, possible values (find out by running \f(CW\*(C`highlight \-\-list\-themes\*(C'\fR):
+acid, aiseered, andes, anotherdark, autumn, baycomb, bclear, biogoo, bipolar,
+blacknblue, bluegreen, breeze, bright, camo, candy, clarity, dante, darkblue,
+darkbone, darkness, darkslategray, darkspectrum, denim, dusk, earendel, easter,
+edit-anjuta, edit-bbedit, edit-eclipse, edit-emacs, edit-fasm,
+edit-flashdevelop, edit-gedit, edit-godot, edit-jedit, edit-kwrite,
+edit-matlab, edit\-msvs2008, edit-nedit, edit-purebasic, edit-vim,
+edit-vim-dark, edit-xcode, ekvoli, fine_blue, freya, fruit, github, golden,
+greenlcd, kellys, leo, lucretia, manxome, maroloccio, matrix, moe, molokai,
+moria, navajo-night, navy, neon, night, nightshimmer, nuvola, olive, orion,
+oxygenated, pablo, peaksea, print, rand01, rdark, relaxedgreen, rootwater,
+seashell, solarized-dark, solarized-light, sourceforge, tabula, tcsoft, the,
+vampire, whitengrey, xoria256, zellner, zenburn and zmrok.
+.IP "\s-1HIGHLIGHT_OPTIONS\s0" 8
+.IX Item "HIGHLIGHT_OPTIONS"
+\&\fIhighlight\fR will pick up command line options specified in this variable. A
+\&\f(CW\*(C`\-\-style=\*(C'\fR option specified here will override \f(CW\*(C`HIGHLIGHT_STYLE\*(C'\fR.
 .IP "\s-1XDG_CONFIG_HOME\s0" 8
 .IX Item "XDG_CONFIG_HOME"
 Specifies the directory for configuration files. Defaults to \fI\f(CI$HOME\fI/.config\fR.
@@ -1676,7 +1708,7 @@ copy, run:
 .Ve
 .SH "SEE ALSO"
 .IX Header "SEE ALSO"
-\&\fIrifle\fR\|(1)
+\&\fBrifle\fR\|(1)
 .SH "BUGS"
 .IX Header "BUGS"
 Report bugs here: <https://github.com/ranger/ranger/issues>
diff --git a/doc/ranger.pod b/doc/ranger.pod
index d182f3af..8cb5da43 100644
--- a/doc/ranger.pod
+++ b/doc/ranger.pod
@@ -1781,6 +1781,36 @@ the "S" key.  Defaults to "/bin/sh".
 Defines the terminal emulator command that ranger is going to use with the
 :terminal command and the "t" run flag.  Defaults to "xterm".
 
+=item PYGMENTIZE_STYLE
+
+Specifies the theme to be used for syntax highlighting when I<pygmentize> is
+installed unless I<highlight> is also installed, possible values (find out by
+running C<pygments.styles.get_all_styles()>): abap, algol, algol_nu, arduino,
+autumn, borland, bw, colorful, emacs, friendly, fruity, igor, lovelace, manni,
+monokai, murphy, native, paraiso-dark, paraiso-light, pastie, perldoc,
+rainbow_dash, rrt, tango, trac, vim, vs and xcode.
+
+=item HIGHLIGHT_STYLE
+
+Specifies the theme to be used for syntax highlighting when I<highlight> is
+installed, possible values (find out by running C<highlight --list-themes>):
+acid, aiseered, andes, anotherdark, autumn, baycomb, bclear, biogoo, bipolar,
+blacknblue, bluegreen, breeze, bright, camo, candy, clarity, dante, darkblue,
+darkbone, darkness, darkslategray, darkspectrum, denim, dusk, earendel, easter,
+edit-anjuta, edit-bbedit, edit-eclipse, edit-emacs, edit-fasm,
+edit-flashdevelop, edit-gedit, edit-godot, edit-jedit, edit-kwrite,
+edit-matlab, edit-msvs2008, edit-nedit, edit-purebasic, edit-vim,
+edit-vim-dark, edit-xcode, ekvoli, fine_blue, freya, fruit, github, golden,
+greenlcd, kellys, leo, lucretia, manxome, maroloccio, matrix, moe, molokai,
+moria, navajo-night, navy, neon, night, nightshimmer, nuvola, olive, orion,
+oxygenated, pablo, peaksea, print, rand01, rdark, relaxedgreen, rootwater,
+seashell, solarized-dark, solarized-light, sourceforge, tabula, tcsoft, the,
+vampire, whitengrey, xoria256, zellner, zenburn and zmrok.
+
+=item HIGHLIGHT_OPTIONS
+
+I<highlight> will pick up command line options specified in this variable. A
+C<--style=> option specified here will override C<HIGHLIGHT_STYLE>.
 
 =item XDG_CONFIG_HOME