gnulib-tool.py: Fix section extraction from module descriptions.

The code with   self.content.split(section)[-1]
was broken because it recognizes an indented section label.
Similar code with   ('\n' + self.content).split('\n' + section)[-1]
would still be broken because it recognizes an indented section label
in the first line of the file.
The code with   section_label_regex
was broken because sometimes it returns the second-to-last section with
the given label, not the last one.
Also, whitespace after the colon was not ignored.

* pygnulib/GLModuleSystem.py (GLModule.__init__): Dissect the module
description's contents immediately, once only, in a reliable way.
(GLModule.getDescription, GLModule.getComment): Simplify.
(GLModule.getStatus): Simplify. Return a string.
(GLModule.getStatuses): New function. Return a list.
(GLModule.getNotice, GLModule.getApplicability, GLModule.getFiles,
GLModule.getDependencies, GLModules.getAutoconfSnippet_Early,
GLModules.getAutoconfSnippet, GLModule.getAutomakeSnippet_Conditional,
GLModule.getInclude, GLModule.getLink, GLModule.getLicense_Raw):
Simplify.
(GLModule.getLicense): Remove whitespace after calling getLicense_Raw.
(GLModule.getMaintainer): Simplify.
(GLModuleTable.transitive_closure): Call getStatuses() instead of
getStatus().
* pygnulib/GLEmiter.py: Likewise.
* gnulib-tool.py (main): For --extract-description, --extract-comment,
--extract-status, --extract-notice, --extract-autoconf-snippet,
--extract-automake-snippet, --extract-include-directive,
--extract-link-directive, --extract-maintainer, don't add an extra
newline after the snippet.

1 files changed, 9 insertions, 10 deletions

diff --git a/gnulib-tool.py b/gnulib-tool.py
index 032deee6e0..0e888e6fd8 100755
--- a/gnulib-tool.py
+++ b/gnulib-tool.py
@@ -974,29 +974,28 @@ def main():
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getDescription())
+            sys.stdout.write(module.getDescription())
 
     elif mode == 'extract-comment':
         modulesystem = classes.GLModuleSystem(config)
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getComment())
+            sys.stdout.write(module.getComment())
 
     elif mode == 'extract-status':
         modulesystem = classes.GLModuleSystem(config)
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            status = module.getStatus()
-            print('\n'.join(status))
+            sys.stdout.write(module.getStatus())
 
     elif mode == 'extract-notice':
         modulesystem = classes.GLModuleSystem(config)
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getNotice())
+            sys.stdout.write(module.getNotice())
 
     elif mode == 'extract-applicability':
         modulesystem = classes.GLModuleSystem(config)
@@ -1039,28 +1038,28 @@ def main():
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getAutoconfSnippet())
+            sys.stdout.write(module.getAutoconfSnippet())
 
     elif mode == 'extract-automake-snippet':
         modulesystem = classes.GLModuleSystem(config)
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getAutomakeSnippet())
+            sys.stdout.write(module.getAutomakeSnippet())
 
     elif mode == 'extract-include-directive':
         modulesystem = classes.GLModuleSystem(config)
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getInclude())
+            sys.stdout.write(module.getInclude())
 
     elif mode == 'extract-link-directive':
         modulesystem = classes.GLModuleSystem(config)
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getLink())
+            sys.stdout.write(module.getLink())
 
     elif mode == 'extract-license':
         modulesystem = classes.GLModuleSystem(config)
@@ -1074,7 +1073,7 @@ def main():
         modules = [ modulesystem.find(module)
                     for module in modules ]
         for module in modules:
-            print(module.getMaintainer())
+            sys.stdout.write(module.getMaintainer())
 
     elif mode == 'extract-tests-module':
         modulesystem = classes.GLModuleSystem(config)