format: [(start_of_line,position in params)] example:
data:
cpu 90 45 24 5 345
cpu0 14 11 83 34 33
^^^^
start of line
params 0 1 2 3 4
get_field(data,3,"cpu0", " +") => 34
get_field(data,4,"cpu", " +") => 345
Signed-off-by: JiÅÃ Åupka <jzupka@xxxxxxxxxx>
---
client/common_lib/utils.py | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/client/common_lib/utils.py b/client/common_lib/utils.py
index 8d6c1f7..c126e58 100644
--- a/client/common_lib/utils.py
+++ b/client/common_lib/utils.py
@@ -190,6 +190,30 @@ def read_file(filename):
f.close()
+def get_field(data, param, linestart="", sep=" "):
+ """
+ Parse data from string.
+ @param data: Data to parse.
+ example:
+ data:
+ cpu 324 345 34 5 345
+ cpu0 34 11 34 34 33
+ ^^^^
+ start of line
+ params 0 1 2 3 4
+ @param param: Position of parameter after linestart marker.
+ @param linestart: String to which start line with parameters.
+ @param sep: Separator between parameters regular expression.
+ """
+ search = re.compile(r"(?<=^%s)\s*(.*)" % linestart, re.MULTILINE)
+ find = search.search(data)
+ if find != None:
+ return re.split("%s" % sep, find.group(1))[param]
+ else:
+ print "There is no line which starts with %s in data." % linestart
+ return None
+
+
def write_one_line(filename, line):
open_write_close(filename, line.rstrip('\n') + '\n')
--
1.7.2.3
--
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