add hg and python

1 files changed, 63 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Doc/tools/findmodrefs b/sys/src/cmd/python/Doc/tools/findmodrefs
new file mode 100755
index 000000000..8c5f93fb6
--- /dev/null
+++ b/sys/src/cmd/python/Doc/tools/findmodrefs
@@ -0,0 +1,63 @@
+#! /usr/bin/env python
+#  -*- Python -*-
+
+import fileinput
+import getopt
+import glob
+import os
+import re
+import sys
+
+
+declare_rx = re.compile(
+    r"\\declaremodule(?:\[[a-zA-Z0-9]*\]*)?{[a-zA-Z_0-9]+}{([a-zA-Z_0-9]+)}")
+
+module_rx = re.compile(r"\\module{([a-zA-Z_0-9]+)}")
+
+def main():
+    try:
+        just_list = 0
+        print_lineno = 0
+        opts, args = getopt.getopt(sys.argv[1:], "ln", ["list", "number"])
+        for opt, arg in opts:
+            if opt in ("-l", "--list"):
+                just_list = 1
+            elif opt in ("-n", "--number"):
+                print_lineno = 1
+        files = args
+        if not files:
+            files = glob.glob("*.tex")
+            files.sort()
+        modulename = None
+        for line in fileinput.input(files):
+            if line[:9] == r"\section{":
+                modulename = None
+                continue
+            if line[:16] == r"\modulesynopsys{":
+                continue
+            m = declare_rx.match(line)
+            if m:
+                modulename = m.group(1)
+                continue
+            if not modulename:
+                continue
+            m = module_rx.search(line)
+            if m:
+                name = m.group(1)
+                if name != modulename:
+                    filename = fileinput.filename()
+                    if just_list:
+                        print filename
+                        fileinput.nextfile()
+                        modulename = None
+                    elif print_lineno:
+                        print "%s(%d):%s" \
+                              % (filename, fileinput.filelineno(), line[:-1])
+                    else:
+                        print "%s:%s" % (filename, line[:-1])
+    except KeyboardInterrupt:
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()