[nongnu] elpa/yaml-mode 85d5c63 050/124: allow dash-newline to start a sequence

[ELPA Syncer]

branch: elpa/yaml-mode
commit 85d5c630c1b1a2226d657ee01c4e60d039e04474
Author: Antal K <antalk2@gmail.com>
Commit: Antal K <antalk2@gmail.com>

    allow dash-newline to start a sequence
---
 test-files/test-dash-newline-starts-sequence.yaml | 35 +++++++++++++++++++++++
 yaml-mode.el                                      |  2 +-
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/test-files/test-dash-newline-starts-sequence.yaml 
b/test-files/test-dash-newline-starts-sequence.yaml
new file mode 100644
index 0000000..c8de74a
--- /dev/null
+++ b/test-files/test-dash-newline-starts-sequence.yaml
@@ -0,0 +1,35 @@
+#
+# Old behaviour (version 0.0.12)
+#
+# (1) Move to cursor to the beginning of the line containing 'aaa'
+# (2) Press TAB
+# (3) The line should be indented now.
+# Problem: the line is not indented.
+#
+# Note: in the line containing the dash ('-') there is no space character
+# after the dash, so it is not recognized as start of the sequence entry
+# by 
+#
+# (defconst yaml-nested-sequence-re
+#  (concat "^\\(?: *- +\\)+"
+#          "\\(?:" yaml-bare-scalar-re " *:\\(?: +.*\\)?\\)?$")
+#  "Regexp matching a line containing one or more nested YAML sequences.")
+#
+# Proposed change:
+#
+# Change yaml-bare-scalar-re to
+#
+# (defconst yaml-nested-sequence-re
+#  (concat "^\\(?:\\(?: *- +\\)+\\|\\(:?-$\\)\\)"
+#          "\\(?:" yaml-bare-scalar-re " *:\\(?: +.*\\)?\\)?$")
+#  "Regexp matching a line containing one or more nested YAML sequences.")
+#
+# The added alternative \\(:?-$\\) now recognizes the dash-newline sequence.
+#
+# New behaviour:
+#
+#    (1) Pressing TAB on the line containing 'aaa' now indents the line.
+#    (2) Pressing TAB again unindents the line.
+#
+-
+aaa
diff --git a/yaml-mode.el b/yaml-mode.el
index 15f3872..c7c8966 100644
--- a/yaml-mode.el
+++ b/yaml-mode.el
@@ -162,7 +162,7 @@ that key is pressed to begin a block literal."
   "Regexp matching a line beginning a YAML block literal.")
 
 (defconst yaml-nested-sequence-re
-  (concat "^\\(?: *- +\\)+"
+  (concat "^\\(?:\\(?: *- +\\)+\\|\\(:?-$\\)\\)"
           "\\(?:" yaml-bare-scalar-re " *:\\(?: +.*\\)?\\)?$")
   "Regexp matching a line containing one or more nested YAML sequences.")