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Update highlighters.asciidoc page to reflect the new syntax
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Maxime Coste
parent
64d0fd91ae
commit
7976f8289e
@ -5,24 +5,23 @@
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Manipulation of the displayed text is done through highlighters, which can
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be added or removed with the following commands:
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----------------------------------------------------------------------
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add-highlighter <path> <highlighter_name> <highlighter_parameters> ...
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----------------------------------------------------------------------
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-----------------------------------------------------
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add-highlighter <path>/<name> <type> <parameters> ...
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-----------------------------------------------------
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and
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------------------------------------------
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remove-highlighter <path>/<highlighter_id>
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------------------------------------------
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--------------------------------
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remove-highlighter <path>/<name>
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--------------------------------
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*path* is the name of an highlighter group, it is expressed as a */*
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separated path starting with a scope. Scopes are *global*, *buffer*,
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*window* and *shared*
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*highlighter_id* is a name generated by the highlighter specified with
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*highlighter_name*, possibly dependent on the parameters. Use command
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completion in a prompt on the *remove-highlighter* command to see the
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existing highlighters ids.
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*name* is the name of the highlighter, if name is omitted in
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`add-highlighter` (the path ends with a `/`), it will be auto-generated
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from the remaining parameters.
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== Convenient highlighters
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@ -96,18 +95,18 @@ existing highlighters ids.
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This highlights C++ style comments in cyan, with an eventual 'TODO:'
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in yellow on red background:
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-------------------------------------------------------------------
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add-highlighter window regex //\h*(TODO:)[^\n]* 0:cyan 1:yellow,red
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-------------------------------------------------------------------
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--------------------------------------------------------------------
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add-highlighter window/ regex //\h*(TODO:)[^\n]* 0:cyan 1:yellow,red
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--------------------------------------------------------------------
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*dynregex* <expression> <capture_id>:<face> ...::
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similar to regex, but expand (like a command parameter would) the
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given expression before building a regex from the result.
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This highlights all the current search matches in italic:
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----------------------------------------------
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add-highlighter window dynregex '%reg{/}' 0:+i
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----------------------------------------------
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-----------------------------------------------
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add-highlighter window/ dynregex '%reg{/}' 0:+i
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-----------------------------------------------
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== Specs highlighters
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@ -158,21 +157,22 @@ The *group* highlighter is a container for other highlighters. A subgroup
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can be added to an existing group or scope using:
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-----------------------------------
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add-highlighter <path> group <name>
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add-highlighter <path>/<name> group
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-----------------------------------
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That group is then accessible using the *<path>/<name>* path
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Other highlighters can then be added to that group
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------------------------------------------------
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add-highlighter <path>/<name> <type> <params>...
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------------------------------------------------
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In order to specify which kinds of highlighters can be added to a given group, the *-passes*
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flag set can be passed along with the group name. Possible values for this option can be one
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or several (separated with a pipe sign) of *colorize*, *move* or *wrap* (default: *colorize*):
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In order to specify which kinds of highlighters can be added to a
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given group, the *-passes* flag set can be passed along with the group
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name. Possible values for this option can be one or several (separated
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with a pipe sign) of *colorize*, *move* or *wrap* (default: *colorize*):
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--------------------------------------------------------------
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add-highlighter window group -passes colorize|move|wrap <name>
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add-highlighter window/<name> group -passes colorize|move|wrap
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--------------------------------------------------------------
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== Regions highlighters
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@ -180,16 +180,35 @@ add-highlighter window group -passes colorize|move|wrap <name>
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A special highlighter provides a way to segment the buffer into regions,
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which are to be highlighted differently.
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*name*::
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user defined, used to identify the region
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-------------------------------------
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add-highlighter <path>/<name> regions
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-------------------------------------
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Individual region definitions can then be added to that highlighter
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----------------------------------------------------
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add-highlighter <path>/<name>/<region_name> region \
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<opening> <closing> <recurse> <type> <params>...
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----------------------------------------------------
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*opening*::
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regex that defines the region start text
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*closing*::
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regex that defines the region end text
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*recurse*::
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regex that defines the text that matches recursively an end token
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into the region
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*type* and *params*::
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An highlighter type, and associated params, as they would be passed
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to `add-highlighter` if they were not applied as a region.
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If the *-match-capture* switch is passed, then region closing and recurse
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matches are considered valid for a given region opening match only if they
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matched the same content for the capture 1.
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The *recurse* option is useful for regions that can be nested, for example
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the following contruct:
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@ -209,47 +228,30 @@ This region can be defined with:
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shell_expand %sh\{ \} \{
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------------------------
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Regions are used in the region highlighters which can take any number
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of regions.
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The following command:
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------------------------------------------------------
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add-highlighter <path> regions <name> \
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<region_name1> <opening1> <closing1> <recurse1> \
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<region_name2> <opening2> <closing2> <recurse2>...
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------------------------------------------------------
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defines multiple regions in which other highlighters can be added as follows:
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-----------------------------------------------
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add-highlighter <path>/<name>/<region_name> ...
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-----------------------------------------------
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Regions are matched using the left-most rule: the left-most region opening
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starts a new region. When a region closes, the closest next opening start
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another region.
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That matches the rule governing most programming language parsing.
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Regions also supports a *-default <default_region>* switch to define the
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default region, when no other region matches the current buffer range.
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A default region, that will apply its given highlighter for segments of the
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buffer that are not in any defined region, can be added with the *default-region*
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highlighter type.
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If the *-match-capture* switch is passed, then region closing and recurse
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matches are considered valid for a given region opening match only if they
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matched the same content for the capture 1.
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-----------------------------------------------------------------------------
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add-highlighter <path>/<name>/<region_name> default-region <type> <params>...
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-----------------------------------------------------------------------------
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Most programming languages can then be properly highlighted using a region
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highlighter as root:
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-----------------------------------------------------------------
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add-highlighter <path> regions -default code <lang> \
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string <str_opening> <str_closing> <str_recurse> \
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comment <comment_opening> <comment_closing> <comment_recurse>
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add-highlighter <path>/<lang>/code ...
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add-highlighter <path>/<lang>/string ...
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add-highlighter <path>/<lang>/comment ...
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add-highlighter <path>/<lang> regions
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add-highlighter <path>/<lang>/string '"' '"' '' fill string
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add-highlighter <path>/<lang>/comment '//' '$' '' fill comment
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add-highlighter <path>/<lang>/code default-region group
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add-highlighter <path>/<lang>/code/variable regex ...
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add-highlighter <path>/<lang>/code/function regex ...
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-----------------------------------------------------------------
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== Shared Highlighters
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@ -259,12 +261,12 @@ sense to share the highlighters between all the windows on the same filetypes.
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Highlighters can be put in the shared scope in order to make them reusable.
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---------------------------------------
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add-highlighter shared/<group_name> ...
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---------------------------------------
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---------------------------------
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add-highlighter shared/<name> ...
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---------------------------------
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The common case would be to create a named shared group, and then fill it
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with highlighters:
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The common case would be to create a named shared group, or regions and then
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fill it with highlighters:
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---------------------------------------
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add-highlighter shared/ group <name>
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@ -273,8 +275,8 @@ add-highlighter shared/<name> regex ...
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It can then be referenced in a window using the ref highlighter.
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---------------------------------
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add-highlighter window ref <name>
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---------------------------------
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----------------------------------
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add-highlighter window/ ref <name>
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----------------------------------
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The ref can reference any named highlighter in the shared scope.
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