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-rw-r--r--snakemake-mode.el158
1 files changed, 90 insertions, 68 deletions
diff --git a/snakemake-mode.el b/snakemake-mode.el
index 4272f26..52dc412 100644
--- a/snakemake-mode.el
+++ b/snakemake-mode.el
@@ -73,62 +73,68 @@
;;; Regexp
+(eval-and-compile
+ (defconst snakemake-rx-constituents
+ `((named-rule . ,(rx (and (group symbol-start (or "rule" "subworkflow"))
+ " "
+ (group (one-or-more
+ (or (syntax word) (syntax symbol)))))))
+ (anon-rule . ,(rx symbol-start "rule"))
+ (field-key . ,(rx symbol-start
+ (or "benchmark"
+ "input"
+ "log"
+ "message"
+ "output"
+ "params"
+ "priority"
+ "resources"
+ "run"
+ "script"
+ "shadow"
+ "shell"
+ "threads"
+ "version"
+ "wrapper"
+ ;; Keys for subworkflow blocks
+ "snakefile"
+ "workdir")
+ symbol-end))
+ (sm-command . ,(rx symbol-start
+ (or "configfile"
+ "include"
+ "onerror"
+ "onsuccess"
+ "ruleorder"
+ "workdir")
+ symbol-end))
+ (sm-func . ,(rx symbol-start
+ (or "dynamic"
+ "expand"
+ "protected"
+ "shell"
+ "temp"
+ "touch")
+ symbol-end)))
+ "Snakemake-specific sexps for `snakemake-rx'.")
+
+ (defmacro snakemake-rx (&rest regexps)
+ "Specialized `rx' for Snakemake mode."
+ ;; Modified from `python-rx'.
+ (let ((rx-constituents (append snakemake-rx-constituents rx-constituents)))
+ (cond ((null regexps)
+ (error "No regexp"))
+ ((cdr regexps)
+ (rx-to-string `(and ,@regexps) t))
+ (t
+ (rx-to-string (car regexps) t))))))
+
(defconst snakemake-rule-or-subworkflow-re
- (rx line-start
- (zero-or-more space)
- (or (and (group symbol-start (or "rule" "subworkflow"))
- " "
- (group (one-or-more (or (syntax word) (syntax symbol)))) )
- (group symbol-start "rule"))
- (zero-or-more space)
- ":")
+ (snakemake-rx line-start (zero-or-more space)
+ (or named-rule (group anon-rule))
+ (zero-or-more space) ":")
"Regexp matching a rule or subworkflow.")
-(defconst snakemake-toplevel-command-re
- (rx line-start
- (zero-or-more space)
- (group (or "configfile"
- "include"
- "onerror"
- "onsuccess"
- "ruleorder"
- "workdir"))
- (zero-or-more space) ":")
- "Regexp matching other toplevel commands aside from 'rule'.")
-
-(defconst snakemake-field-key-re
- (rx (group symbol-start
- (or "benchmark"
- "input"
- "log"
- "message"
- "output"
- "params"
- "priority"
- "resources"
- "run"
- "script"
- "shadow"
- "shell"
- "threads"
- "version"
- "wrapper"
- ;; Keys for subworkflow blocks
- "snakefile"
- "workdir"))
- (zero-or-more space) ":")
- "Regexp matching a rule or subworkflow field key.")
-
-(defconst snakemake-field-key-indented-re
- (concat "^\\s-+" snakemake-field-key-re)
- "Regexp matching a field key, including indentation.")
-
-(defconst snakemake-builtin-function-re
- (rx (group symbol-start
- (or "expand" "shell" "protected" "temp" "dynamic" "touch"))
- (zero-or-more space) "(")
- "Regexp matching a call to a builtin Snakemake function.")
-
;;; Info and navigation
@@ -237,10 +243,10 @@ returned."
(save-restriction
(widen)
(beginning-of-line)
- (if (or (looking-at-p (concat "^\\s-*" snakemake-field-key-re))
- (looking-at-p (rx line-start
- (zero-or-more space)
- (or "\"\"\"" "'''"))))
+ (if (looking-at-p (snakemake-rx
+ line-start (zero-or-more space)
+ (or (and field-key (zero-or-more space) ":")
+ (or "\"\"\"" "'''"))))
(and goto-first-p
(let (rule-indent)
(while (not (or rule-indent (bobp)))
@@ -253,17 +259,22 @@ returned."
(skip-chars-backward " \t\n")
(beginning-of-line)
(cond
- ((cl-some (lambda (re)
- (looking-at-p (concat re "\\s-*\\(?:#.*\\)?$")))
- (list snakemake-field-key-indented-re
- snakemake-rule-or-subworkflow-re
- snakemake-toplevel-command-re))
+ ((looking-at-p (snakemake-rx
+ line-start (zero-or-more space)
+ (or named-rule anon-rule
+ field-key sm-command)
+ (zero-or-more space) ":" (zero-or-more space)
+ (zero-or-one (and "#" (zero-or-more not-newline)))
+ line-end))
(let ((above-indent (current-indentation)))
(cond (goto-first-p
(+ above-indent snakemake-indent-value-offset))
((< above-indent initial-indent)
above-indent))))
- ((looking-at (concat snakemake-field-key-indented-re "\\s-*"))
+ ((looking-at (snakemake-rx
+ line-start (zero-or-more space)
+ field-key
+ (zero-or-more space) ":" (zero-or-more space)))
(let ((above-indent (current-indentation)))
(cond (goto-first-p
(- (match-end 0) (line-beginning-position)))
@@ -278,8 +289,12 @@ returned."
(setq field-indent (current-indentation)))
(looking-at-p "^\\s-*$")))
(forward-line -1)))
- (and (looking-at
- (concat snakemake-field-key-indented-re "\\s-*\\(.*\\)"))
+ (and (looking-at (snakemake-rx
+ line-start (zero-or-more space)
+ (group field-key)
+ (zero-or-more space) ":"
+ (zero-or-more space)
+ (group (zero-or-more not-newline))))
(not (equal (match-string-no-properties 1)
"run"))
(cond (goto-first-p
@@ -396,9 +411,16 @@ embedded R, you need to set mmm-global-mode to a non-nil value such as 'maybe.")
(1 font-lock-keyword-face nil 'lax)
(2 font-lock-function-name-face nil 'lax)
(3 font-lock-keyword-face nil 'lax))
- (,snakemake-toplevel-command-re 1 font-lock-keyword-face)
- (,snakemake-builtin-function-re 1 font-lock-builtin-face)
- (,snakemake-field-key-indented-re 1 font-lock-type-face)))
+ (,(snakemake-rx line-start (zero-or-more space)
+ (group sm-command)
+ (zero-or-more space) ":")
+ 1 font-lock-keyword-face)
+ (,(snakemake-rx (group sm-func) (zero-or-more space) "(")
+ 1 font-lock-builtin-face)
+ (,(snakemake-rx line-start (one-or-more space)
+ (group field-key)
+ (zero-or-more space) ":")
+ 1 font-lock-type-face)))
;;;###autoload
(define-derived-mode snakemake-mode python-mode "Snakemake"