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-rw-r--r--site_scons/soe_utils.py34
1 files changed, 34 insertions, 0 deletions
diff --git a/site_scons/soe_utils.py b/site_scons/soe_utils.py
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+++ b/site_scons/soe_utils.py
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+import os.path
+import re
+
+from SCons.Script import Builder, Action, Scanner
+
+def soelim(target, source, env):
+ """
+ Interpolate files included in [gnt]roff source files using the
+ .so directive.
+
+ This behaves somewhat like the soelim(1) wrapper around groff, but
+ makes us independent of whether the actual underlying implementation
+ includes an soelim() command or the corresponding command-line option
+ to groff(1). The key behavioral difference is that this doesn't
+ recursively include .so files from the include file. Not yet, anyway.
+ """
+ t = str(target[0])
+ s = str(source[0])
+ dir, f = os.path.split(s)
+ with open(t, 'w') as tfp, open(s, 'r') as sfp:
+ for line in sfp.readlines():
+ if line[:4] in ['.so ', "'so "]:
+ sofile = os.path.join(dir, line[4:-1])
+ with open(sofile, 'r') as f:
+ tfp.write(f.read())
+ else:
+ tfp.write(line)
+
+def soscan(node, env, path):
+ c = node.get_text_contents()
+ return re.compile(r"^[\.']so\s+(\S+)", re.M).findall(c)
+
+soelimbuilder = Builder(action = Action(soelim),
+ source_scanner = Scanner(soscan))