172 lines
3.1 KiB
Plaintext
172 lines
3.1 KiB
Plaintext
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# Barebones Dockerfile syntax for JOE. Doesn't handle more sophisticated sh syntax.
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=Idle
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=Command +Statement +Keyword
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=Comment
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=Constant
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=String +Constant
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=Ident
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=Escape
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=Brace
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=StringEscape +Escape
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=Variable +DefinedIdent
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# Start of line is special
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:start Idle
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* idle
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" \t" start
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"#" comment noeat
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"A-Za-z" command buffer noeat
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"\n" start
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# Comments between commands
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:comment Comment comment
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* comment
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"BFHNTX" comment noeat call=comment_todo.comment_todo()
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"\n" start
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# Comments in the middle of a command
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:comment_idle Comment comment
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* comment_idle
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"\n" idle
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# Start of line in the middle of "idle" mode (skips command recognition in case a comment
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# comes in the middle of a RUN)
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:start_idle Idle
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* idle noeat
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"#" comment_idle recolor=-1
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# Generic middle-of-a-command
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:idle Idle
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* idle
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"$" idle recolor=-1 call=.variable()
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"\n" start
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"\\" escape recolor=-1
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:escape Escape
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* idle recolor=-2 noeat
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"\\\"" idle
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"\r" escape
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"\n" start_idle
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:command Idle
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* idle noeat istrings
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"FROM" from
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"MAINTAINER" string_command
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"RUN" list_command
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"CMD" list_command
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"LABEL" label
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"EXPOSE" generic_command
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"ENV" generic_command
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"ADD" list_command
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"COPY" list_command
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"ENTRYPOINT" list_command
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"VOLUME" list_command
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"USER" string_command
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"WORKDIR" string_command
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"ARG" generic_command
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"ONBUILD" generic_command
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"STOPSIGNAL" generic_command
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done
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"a-zA-Z" command
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# EXPOSE, ENV, ARG, ONBUILD, STOPSIGNAL
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:generic_command Command
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* idle
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# MAINTAINER, USER, WORKDIR
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:string_command Command
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* string_command_data
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:string_command_data Constant
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* string_command_data
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"$" string_command_data recolor=-1 call=.variable()
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"\n" start
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# FROM
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:from Command
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* from_image noeat
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:from_image Constant
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* from_image
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":@" from_tag noeat
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"\n" start
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:from_tag Idle
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* from_tag
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"\n" start
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# RUN, CMD, ADD, COPY, ENTRYPOINT, VOLUME
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:list_command Command
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* idle noeat
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" \t" list_command
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"[" array noeat
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"\n" start
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:array Idle
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* array
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"[]" bracket noeat
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"\"'" array recolor=-1 call=.string() save_c
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"\n" start
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:comma Idle
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* array noeat
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:bracket Brace
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"]" idle
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"[" array
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# LABEL
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:label Command
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* label_key
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"\n" start
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:label_key Variable
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* label_key
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"=" label_value noeat
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"\n" start
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:label_value Constant
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* label_value
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"\"" label_value recolor=-1 call=.string() save_c
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"\n" start
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.subr variable
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:variable Variable
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* variable recolor=-2 return noeat
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"A-Za-z_" variable_name
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"{" variable_long
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:variable_name Variable
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* variable_name return noeat
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"A-Za-z0-9_" variable_name
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:variable_long Variable
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* variable_long
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& variable return noeat
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"\n" variable return noeat
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"}" variable return
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":" variable_after
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:variable_after Idle
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* variable_after
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& variable_after return noeat
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"}" variable_long noeat
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.end
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.subr string
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:string String string
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* string
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& string return
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"\n" string return noeat
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"\\" string_escape recolor=-1
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"$" string recolor=-1 call=.variable()
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:string_escape StringEscape string
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* string
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.end
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