628 lines
16 KiB
Plaintext
628 lines
16 KiB
Plaintext
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# JOE Syntax-Highlighting Description
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# for
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# JOE Syntax-Highlighting Descriptions
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#
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# Author: Charles J. Tabony
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# Date: 2007-2-13
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#
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# This is a highlighting description for files like this one.
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#
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# When CHECKING is defined, it is very aggressive about error checking. The
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# idea is that anywhere the highlighted file contains a syntax error, at least
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# one visible character should be highlighted as Bad. While that feature is
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# useful for finding syntax errors, it is annoying when editing a file, since
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# nearly everything is an error until you finish typing it.
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#
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# In order to not annoy people by default, but keep the option of strictly
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# checking syntax, I predicated the stricter checking on the CHECKING parameter.
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# By default, things that are incomplete are generally not marked as errors.
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# Only things that appear to be actual mistakes are highlighted as Bad. To
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# enable the stricter checking, one can highlight the file with the jsf_check
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# syntax. jsf_check.jsf simply calls the entire jsf.jsf file with CHECKING
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# defined.
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#
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# The idea is for authors of a jsf file to edit their file, highlight it with
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# jsf_check, and then look for any red characters. That way they can check for
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# syntax errors before testing the changes.
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#####################
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# Color Definitions #
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#####################
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=Idle
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=Comment
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=Conditional +Precond +Preproc
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=Parameter +Ident
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=Keyword
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=Color +Type
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=ColorRef
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=State +Ident
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=Subr +Ident
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=Constant
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=Number +Constant
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=String +Constant
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=StringEscape +Escape +String
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=Bad
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##################
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# Initial States #
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##################
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# This is a dummy state that simply jumps to comment_or_bad. It is here so that
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# when this file calls itself with the STRINGS parameter defined, comment_or_bad
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# will effectively be the initial state. comment_or_bad should be the initial
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# state because strings and istrings options can only be used as the last option
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# of a transition.
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.ifdef STRINGS
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:strings_initial Idle
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* comment_or_bad noeat
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.endif
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# Each new line (that is not considered bad from the beginning) begins in the
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# idle state. The first non-whitespace character determines what the rest of
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# the line should contain. Following a strings or istrings option, only strings
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# and comments are allowed until the word "done" denotes the end of the list.
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:idle Idle
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* bad noeat
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" \t\n" idle
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.ifdef STRINGS
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.else
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"-" sync_lines_first
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"." conditional_first mark recolor=-1
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"=" color_definition_first
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":" state_first
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"*&%" special_character recolor=-1
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.endif
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"\"" string recolor=-1
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.ifdef STRINGS
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"\i" special_word mark recolor=-1 buffer
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.endif
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"#" comment recolor=-1
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##############
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# Sync Lines #
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##############
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# Following a '-' should be either the number of sync lines or nothing (meaning
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# unlimited). Nothing else other than a comment should appear on the same line.
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.ifdef STRINGS
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# A sync lines directive should not appear between "[i]strings" and "done".
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.else
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# If we see a non-digit or a '0', then we have seen the entire sync lines
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# directive. The only thing that may appear on the rest of the line is a
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# comment. Otherwise there may be more digits in the number.
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:sync_lines_first Number
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* comment_or_bad noeat
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"0" comment_or_bad
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"1-9" sync_lines
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# Highlight the remainder of the number.
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:sync_lines Number
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* comment_or_bad noeat
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"0-9" sync_lines
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.endif
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##########################
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# Conditional Directives #
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##########################
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# Following a '.' should be a conditional directive.
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.ifdef STRINGS
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# A conditional directive should not appear between "[i]strings" and "done".
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.else
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# Start buffering the conditional directive.
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:conditional_first Conditional
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* conditional noeat buffer
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# Recognize the set of conditional directives.
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:conditional Idle
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* conditional_unknown noeat strings
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"ifdef" ifdef_color
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"else" conditional_color
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"endif" conditional_color
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"subr" subr_color
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"end" conditional_color
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done
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"\c" conditional
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# We encountered what looks like a conditional directive but is unrecognized as
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# such.
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:conditional_unknown Idle
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.ifdef CHECKING
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* bad_line recolormark noeat
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.else
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* comment_or_bad noeat
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.endif
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# We saw a conditional directive that does not take an argument. Nothing else
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# other than a comment should appear on the same line.
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:conditional_color Conditional
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* comment_or_bad noeat
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# We saw a ".ifdef" which must be followed by a parameter.
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:ifdef_color Conditional
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* need_parameter noeat
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# We loop over whitespace until we see the first character of the parameter.
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:need_parameter Idle
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* bad noeat
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" \t" need_parameter
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"\i" parameter recolor=-1
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# Now we highlight the remainder of the parameter.
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:parameter Parameter
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* comment_or_bad noeat
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"\c" parameter
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# The following three states are identical to the previous three except the
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# color.
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:subr_color Conditional
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* need_subr noeat
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:need_subr Idle
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* bad noeat
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" \t" need_subr
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"\i" subr recolor=-1
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:subr Subr
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* comment_or_bad noeat
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"\c" subr
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.endif
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####################
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# Color Definition #
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####################
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# Following an '=' should be a color definition.
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.ifdef STRINGS
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# Color definitions should not appear between "[i]strings" and "done".
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.else
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# A color name must have at least one character.
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:color_definition_first Color
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* color_definition
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" \t#\n" bad noeat
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# Highlight any remaining characters until we see whitespace, a comment, or a
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# newline.
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:color_definition Color
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* color_definition
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" \t#\n" colors_ws noeat
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# The color name may be followed by zero or more standard colors or attributes,
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# ending in a comment or newline.
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:colors_ws Idle
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* color_bad recolor=-1
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" \t" colors_ws
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"+" color_ref recolor=-1
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"#\n" comment noeat
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:color_ref ColorRef
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* colors_ws noeat
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"\c" color_ref
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# We have encountered something that is not recognized as a standard color or
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# attribute. Continue to highlight characters as Bad until we see whitespace, a
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# comment, or a newline.
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:color_bad Bad
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* color_bad
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" \t#\n" colors_ws noeat
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.endif
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#########
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# State #
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#########
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# Following a ':' should be a state definition.
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.ifdef STRINGS
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# New states should not appear between "[i]strings" and "done".
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.else
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# A state name must begin with an alpha character or an underscore.
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:state_first State
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* bad noeat
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"\i" state
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# Subsequent characters in a state name must be alpha-numeric or underscores.
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:state State
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* bad noeat
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"\c" state
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" \t" need_state_color recolor=-1
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# A state must have a color.
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:need_state_color Idle
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* state_color recolor=-1
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" \t" need_state_color
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"#\n" bad noeat
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# Highlight any remaining characters until we see whitespace, a comment, or a
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# newline.
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:state_color Color
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* state_color
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" \t" context_ws recolor=-1
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"#\n" comment_or_bad noeat
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# Following the state color, there might be one or more contexts. Loop over
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# whitespace until we find something else.
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:context_ws Idle
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* comment_or_bad noeat
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" \t" context_ws
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"\i" context mark recolor=-1 buffer
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# Here we recognize the possible contexts.
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:context Idle
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* context_unknown noeat strings
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"comment" context_color
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"string" context_color
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done
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"\c" context
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# We encountered what looks like a context but is unrecognized as such.
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:context_unknown Idle
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.ifdef CHECKING
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* context_bad recolormark noeat
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.else
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* context_ws noeat
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.endif
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# We encountered a valid context.
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:context_color Keyword
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* context_ws noeat
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# We saw something that is not a valid context name with checking enabled.
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# Continue to highlight it as Bad until we see whitespace or a comment.
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:context_bad Bad
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* context_bad
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" \t#\n" context_ws noeat
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.endif
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##############
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# Transition #
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##############
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# A state transition starts with a '*', an '&', or a string.
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.ifdef STRINGS
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# Transitions must start with a string between "[i]strings" and "done".
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.else
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# We saw either a '*' or an '&'. Now we need the next state.
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:special_character Keyword
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* need_next_state noeat
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.endif
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# We are in a string. Continue until we see the close quote or a newline.
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# Highlight escaped characters within the string differently. They start with a
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# '\'.
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:string String string
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* string
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"\\" escape recolor=-1
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"\"" need_next_state
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.ifdef CHECKING
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"\n" bad
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.else
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"\n" bad noeat
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.endif
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# Highlight an escaped character within a string.
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:escape StringEscape string
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* string
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# Loop over whitespace until we see the first character of the next state.
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:need_next_state Idle
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* bad noeat
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" \t" need_next_state
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"\i" next_state recolor=-1
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# Now we highlight the remainder of the next state.
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:next_state State
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* bad noeat
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"\c" next_state
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" \t" options_ws
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"#\n" comment noeat
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# Following the next state should be zero or more options. Loop over whitespace
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# until we find an option, comment, or newline.
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:options_ws Idle
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* option_bad recolor=-1
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" \t" options_ws
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"\i" option mark recolor=-1 buffer
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"#\n" comment noeat
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# Here we recognize the possible options. The strings and istrings options
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# cannot be used between "[i]strings" and "done". Since conditional directives
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# cannot be used between "[i]strings" and "done" either, the list must be
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# duplicated, once without and once with the strings and istrings options.
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:option Idle
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.ifdef STRINGS
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* option_unknown recolormark noeat strings
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"noeat" option_color
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"recolor" recolor_color
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"mark" option_color
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"markend" option_color
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"recolormark" option_color
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"buffer" option_color
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"save_c" option_color
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"save_s" option_color
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"hold" option_color
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"call" call_color
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"return" option_color
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"reset" option_color
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done
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.else
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* option_unknown recolormark noeat strings
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"noeat" option_color
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"recolor" recolor_color
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"mark" option_color
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"markend" option_color
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"recolormark" option_color
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"buffer" option_color
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"save_c" option_color
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"save_s" option_color
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"strings" strings_color
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"istrings" strings_color
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"hold" option_color
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"call" call_color
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"return" option_color
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"reset" option_color
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done
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.endif
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"\c" option
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# We encountered what looks like an option but is unrecognized as such.
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:option_unknown Idle
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.ifdef CHECKING
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* option_bad recolormark noeat
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.else
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* options_ws noeat
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.endif
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# We have encountered an option that does not take an argument. Highlight it
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# and continue to look for more options.
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:option_color Keyword
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* options_ws noeat
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.ifdef STRINGS
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# The strings and istrings options cannot be used between "[i]strings" and
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# "done".
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.else
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# The strings and istrings options are followed by a list of transitions.
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# Rather than duplicate all of the states that highlight transitions, we call
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# this entire file as a subroutine and use the STRINGS parameter to disable
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# everything else and enable the done keyword. We return to the comment_or_bad
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# state since we will return after seeing the done keyword, and nothing but a
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# comment should follow the done keyword.
|
||
|
|
:strings_color Keyword
|
||
|
|
* comment_or_bad noeat call=jsf(STRINGS)
|
||
|
|
.endif
|
||
|
|
|
||
|
|
# Highlight the recolor option.
|
||
|
|
:recolor_color Keyword
|
||
|
|
* recolor_equal noeat
|
||
|
|
|
||
|
|
# The recolor option must be followed by an '='. Loop over whitespace until we
|
||
|
|
# find one.
|
||
|
|
:recolor_equal Idle
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
" \t" recolor_equal
|
||
|
|
"=" recolor_minus mark
|
||
|
|
|
||
|
|
# The recolor option takes an integer argument, and that integer must be
|
||
|
|
# negative. Thus the '=' must be followed by a minus sign. Loop over
|
||
|
|
# whitespace until we find one.
|
||
|
|
:recolor_minus Idle
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
" \t" recolor_minus
|
||
|
|
"-" recolor_amount_first mark recolor=-1
|
||
|
|
|
||
|
|
# The first digit of the argument to recolor must be non-zero.
|
||
|
|
:recolor_amount_first Number
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws recolormark noeat
|
||
|
|
"0" option_bad recolormark noeat
|
||
|
|
.endif
|
||
|
|
"1-9" recolor_amount
|
||
|
|
|
||
|
|
# Keep highlighting digits until we see something else.
|
||
|
|
:recolor_amount Number
|
||
|
|
* option_bad recolormark recolor=-1
|
||
|
|
"0-9" recolor_amount
|
||
|
|
" \t#\n" options_ws noeat
|
||
|
|
|
||
|
|
# Highlight the call option.
|
||
|
|
:call_color Keyword
|
||
|
|
* call_equal noeat
|
||
|
|
|
||
|
|
# The call option must be followed by an '='. Loop over whitespace until we
|
||
|
|
# find one.
|
||
|
|
:call_equal Idle
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
" \t" call_equal
|
||
|
|
"=" call_file_or_dot mark
|
||
|
|
|
||
|
|
# The first part of the argument to the call option is the name of the file
|
||
|
|
# containing the subroutine or a '.', implying the current file. Loop over
|
||
|
|
# whitespace until we see one of those two things.
|
||
|
|
:call_file_or_dot Idle
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
" \t" call_file_or_dot
|
||
|
|
"\i" call_file mark recolor=-1
|
||
|
|
"." call_dot mark
|
||
|
|
|
||
|
|
# Highlight the remainder of the file name. The file name can be followed by a
|
||
|
|
# '.', which must then be followed by the name of a subroutine, or by a list of
|
||
|
|
# parameters in parentheses. The '.', if present, cannot have whitespace on
|
||
|
|
# either side.
|
||
|
|
:call_file Subr
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
"\c" call_file
|
||
|
|
"." call_dot mark recolor=-1
|
||
|
|
" \t(" call_open_paren noeat
|
||
|
|
|
||
|
|
# We saw a '.'. The next character must start the name of a subroutine.
|
||
|
|
:call_dot Idle
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
"(" call_dot_bad recolormark noeat
|
||
|
|
"\i" call_subr mark recolor=-1
|
||
|
|
|
||
|
|
# We have seen a dot followed by an open parenthesis. A dot must be followed by
|
||
|
|
# a subroutine name. Highlight the dot as Bad.
|
||
|
|
:call_dot_bad Bad
|
||
|
|
* call_open_paren noeat
|
||
|
|
|
||
|
|
# Highlight the remainder of the subroutine name. Following the subroutine name
|
||
|
|
# must be a list of parameters in parentheses, possibly preceded by whitespace.
|
||
|
|
:call_subr Subr
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
"\c" call_subr
|
||
|
|
" \t(" call_open_paren noeat
|
||
|
|
|
||
|
|
# Loop over whitespace until we find the open parenthesis.
|
||
|
|
:call_open_paren Idle
|
||
|
|
.ifdef CHECKING
|
||
|
|
* option_bad recolormark noeat
|
||
|
|
.else
|
||
|
|
* options_ws noeat
|
||
|
|
.endif
|
||
|
|
" \t" call_open_paren
|
||
|
|
"(" call_parameters_ws
|
||
|
|
|
||
|
|
# The list of parameters is delimited by whitespace. Loop over whitespace until
|
||
|
|
# we find either the beginning of a parameter or a close parenthesis. We should
|
||
|
|
# not see a comment or newline since the list should be terminated by a close
|
||
|
|
# parenthesis.
|
||
|
|
:call_parameters_ws Idle
|
||
|
|
* call_parameter_bad recolor=-1
|
||
|
|
" \t" call_parameters_ws
|
||
|
|
"-" call_parameter_undef
|
||
|
|
"\i" call_parameter recolor=-1
|
||
|
|
")" options_ws
|
||
|
|
"#\n" bad noeat
|
||
|
|
|
||
|
|
# We saw a "-". The next character should start the parameter being undefined.
|
||
|
|
:call_parameter_undef Parameter
|
||
|
|
* call_parameters_ws noeat
|
||
|
|
"\i" call_parameter recolor=-2
|
||
|
|
|
||
|
|
# Highlight the remainder of the parameter.
|
||
|
|
:call_parameter Parameter
|
||
|
|
* call_parameters_ws noeat
|
||
|
|
"\c" call_parameter
|
||
|
|
|
||
|
|
# We saw something that is not a valid parameter name. Continue to highlight it
|
||
|
|
# as Bad until we see whitespace.
|
||
|
|
:call_parameter_bad Bad
|
||
|
|
* call_parameter_bad
|
||
|
|
") \t#\n" call_parameters_ws noeat
|
||
|
|
|
||
|
|
# We saw something that is not a valid option name. Continue to highlight it as
|
||
|
|
# Bad until we see whitespace or a comment.
|
||
|
|
:option_bad Bad
|
||
|
|
* option_bad
|
||
|
|
" \t#\n" options_ws noeat
|
||
|
|
|
||
|
|
|
||
|
|
########
|
||
|
|
# Done #
|
||
|
|
########
|
||
|
|
|
||
|
|
.ifdef STRINGS
|
||
|
|
# The special word, "done", can only be used after a strings or istrings option.
|
||
|
|
# Recognize the done keyword.
|
||
|
|
:special_word Idle
|
||
|
|
* bad_line recolormark noeat strings
|
||
|
|
"done" done_color
|
||
|
|
done
|
||
|
|
"\c" special_word
|
||
|
|
|
||
|
|
# Highlight the done keyword and return to highlighting things normally, since
|
||
|
|
# the list of strings has been terminated.
|
||
|
|
:done_color Keyword
|
||
|
|
* comment_or_bad return noeat
|
||
|
|
.endif
|
||
|
|
|
||
|
|
|
||
|
|
##################
|
||
|
|
# Comment or Bad #
|
||
|
|
##################
|
||
|
|
|
||
|
|
# We have seen everything that should appear on the current line except an
|
||
|
|
# optional comment. Loop over whitespace until we find a comment or newline.
|
||
|
|
:comment_or_bad Idle
|
||
|
|
* bad noeat
|
||
|
|
" \t" comment_or_bad
|
||
|
|
"#\n" comment noeat
|
||
|
|
|
||
|
|
|
||
|
|
###########
|
||
|
|
# Comment #
|
||
|
|
###########
|
||
|
|
|
||
|
|
# Continue to highlight the comment until the end of the line.
|
||
|
|
:comment Comment comment
|
||
|
|
* comment
|
||
|
|
"BFHNTX" comment noeat call=comment_todo.comment_todo()
|
||
|
|
"\n" idle
|
||
|
|
|
||
|
|
|
||
|
|
#######
|
||
|
|
# Bad #
|
||
|
|
#######
|
||
|
|
|
||
|
|
.ifdef CHECKING
|
||
|
|
# We have encountered incorrect syntax. Loop over whitespace until we see the
|
||
|
|
# first visible character. Highlight that character and the rest of the line as
|
||
|
|
# Bad.
|
||
|
|
:bad Bad
|
||
|
|
* bad_line
|
||
|
|
" \t\n" bad
|
||
|
|
.else
|
||
|
|
# When not performing strict checking, don't go searching for the next visible
|
||
|
|
# character to highlight as Bad. Simply highlight the rest of the line as Bad,
|
||
|
|
# even if it is invisible.
|
||
|
|
:bad Bad
|
||
|
|
* bad_line noeat
|
||
|
|
.endif
|
||
|
|
|
||
|
|
# Continue to highlight everything as Bad until the end of the line.
|
||
|
|
:bad_line Bad
|
||
|
|
* bad_line
|
||
|
|
"\n" idle
|