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utils: raspberrypi: ctt: json_pretty_print: Turn printer into a class

Browse source 
Instead of passing a state dictionary to every method, turn the printer
into a class and store the state internally.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
This commit is contained in:
Laurent Pinchart 2020-07-03 01:43:57 +03:00
parent 1a5b168592
commit 926fe94e4c
1 changed files with 61 additions and 54 deletions
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77
utils/raspberrypi/ctt/ctt_pretty_print_json.py
View file

@ -7,42 +7,45 @@
import sys
"""
takes a collapsed json file and makes it more readable
"""
def process_file(string, fout, state):
for c in string:
process_char(c, fout, state)
class JSONPrettyPrinter(object):
"""
Take a collapsed JSON file and make it more readable
"""
def __init__(self):
self.state = {
"indent": 0,
"inarray": [False],
"arraycount": [],
"skipnewline": True
}
def print_newline(fout, state):
def newline(self, fout):
fout.write('\n')
fout.write(' '*state["indent"]*4)
fout.write(' ' * self.state["indent"] * 4)
def process_char(c, fout, state):
def process_char(self, c, fout):
if c == '{':
if not state["skipnewline"]:
print_newline(fout, state)
if not self.state["skipnewline"]:
self.newline(fout)
fout.write(c)
state["indent"] += 1
print_newline(fout, state)
self.state["indent"] += 1
self.newline(fout)
elif c == '}':
state["indent"] -= 1
print_newline(fout, state)
self.state["indent"] -= 1
self.newline(fout)
fout.write(c)
elif c == '[':
print_newline(fout, state)
self.newline(fout)
fout.write(c)
state["indent"] += 1
print_newline(fout, state)
state["inarray"] = [True] + state["inarray"]
state["arraycount"] = [0] + state["arraycount"]
self.state["indent"] += 1
self.newline(fout)
self.state["inarray"] = [True] + self.state["inarray"]
self.state["arraycount"] = [0] + self.state["arraycount"]
elif c == ']':
state["indent"] -= 1
print_newline(fout, state)
state["inarray"].pop(0)
state["arraycount"].pop(0)
self.state["indent"] -= 1
self.newline(fout)
self.state["inarray"].pop(0)
self.state["arraycount"].pop(0)
fout.write(c)
elif c == ':':
fout.write(c)
@ -50,27 +53,31 @@ def process_char(c, fout, state):
elif c == ' ':
pass
elif c == ',':
if not state["inarray"][0]:
if not self.state["inarray"][0]:
fout.write(c)
fout.write(' ')
print_newline(fout, state)
self.newline(fout)
else:
fout.write(c)
state["arraycount"][0] += 1
if state["arraycount"][0] == 16:
state["arraycount"][0] = 0
print_newline(fout, state)
self.state["arraycount"][0] += 1
if self.state["arraycount"][0] == 16:
self.state["arraycount"][0] = 0
self.newline(fout)
else:
fout.write(' ')
else:
fout.write(c)
state["skipnewline"] = (c == '[')
self.state["skipnewline"] = (c == '[')
def print(self, string, fout):
for c in string:
self.process_char(c, fout)
def pretty_print_json(str_in, output_filename):
state = {"indent": 0, "inarray": [False], "arraycount": [], "skipnewline": True}
with open(output_filename, "w") as fout:
process_file(str_in, fout, state)
printer = JSONPrettyPrinter()
printer.print(str_in, fout)
if __name__ == '__main__':