422 lines
19 KiB
Python
Executable File
422 lines
19 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# schema.py
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#
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# Used by signature.py via common-dependencies.py to generate a schema file during the PlatformIO build.
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# This script can also be run standalone from within the Marlin repo to generate all schema files.
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#
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import re,json
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from pathlib import Path
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def extend_dict(d:dict, k:tuple):
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if len(k) >= 1 and k[0] not in d:
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d[k[0]] = {}
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if len(k) >= 2 and k[1] not in d[k[0]]:
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d[k[0]][k[1]] = {}
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if len(k) >= 3 and k[2] not in d[k[0]][k[1]]:
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d[k[0]][k[1]][k[2]] = {}
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grouping_patterns = [
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re.compile(r'^([XYZIJKUVW]|[XYZ]2|Z[34]|E[0-7])$'),
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re.compile(r'^AXIS\d$'),
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re.compile(r'^(MIN|MAX)$'),
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re.compile(r'^[0-8]$'),
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re.compile(r'^HOTEND[0-7]$'),
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re.compile(r'^(HOTENDS|BED|PROBE|COOLER)$'),
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re.compile(r'^[XYZIJKUVW]M(IN|AX)$')
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]
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# If the indexed part of the option name matches a pattern
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# then add it to the dictionary.
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def find_grouping(gdict, filekey, sectkey, optkey, pindex):
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optparts = optkey.split('_')
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if 1 < len(optparts) > pindex:
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for patt in grouping_patterns:
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if patt.match(optparts[pindex]):
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subkey = optparts[pindex]
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modkey = '_'.join(optparts)
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optparts[pindex] = '*'
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wildkey = '_'.join(optparts)
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kkey = f'{filekey}|{sectkey}|{wildkey}'
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if kkey not in gdict: gdict[kkey] = []
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gdict[kkey].append((subkey, modkey))
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# Build a list of potential groups. Only those with multiple items will be grouped.
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def group_options(schema):
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for pindex in range(10, -1, -1):
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found_groups = {}
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for filekey, f in schema.items():
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for sectkey, s in f.items():
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for optkey in s:
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find_grouping(found_groups, filekey, sectkey, optkey, pindex)
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fkeys = [ k for k in found_groups.keys() ]
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for kkey in fkeys:
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items = found_groups[kkey]
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if len(items) > 1:
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f, s, w = kkey.split('|')
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extend_dict(schema, (f, s, w)) # Add wildcard group to schema
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for subkey, optkey in items: # Add all items to wildcard group
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schema[f][s][w][subkey] = schema[f][s][optkey] # Move non-wildcard item to wildcard group
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del schema[f][s][optkey]
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del found_groups[kkey]
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# Extract all board names from boards.h
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def load_boards():
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bpath = Path("Marlin/src/core/boards.h")
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if bpath.is_file():
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with bpath.open() as bfile:
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boards = []
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for line in bfile:
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if line.startswith("#define BOARD_"):
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bname = line.split()[1]
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if bname != "BOARD_UNKNOWN": boards.append(bname)
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return "['" + "','".join(boards) + "']"
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return ''
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#
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# Extract a schema from the current configuration files
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#
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def extract():
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# Load board names from boards.h
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boards = load_boards()
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# Parsing states
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class Parse:
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NORMAL = 0 # No condition yet
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BLOCK_COMMENT = 1 # Looking for the end of the block comment
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EOL_COMMENT = 2 # EOL comment started, maybe add the next comment?
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GET_SENSORS = 3 # Gathering temperature sensor options
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ERROR = 9 # Syntax error
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# List of files to process, with shorthand
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filekey = { 'Configuration.h':'basic', 'Configuration_adv.h':'advanced' }
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# A JSON object to store the data
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sch_out = { 'basic':{}, 'advanced':{} }
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# Regex for #define NAME [VALUE] [COMMENT] with sanitized line
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defgrep = re.compile(r'^(//)?\s*(#define)\s+([A-Za-z0-9_]+)\s*(.*?)\s*(//.+)?$')
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# Defines to ignore
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ignore = ('CONFIGURATION_H_VERSION', 'CONFIGURATION_ADV_H_VERSION', 'CONFIG_EXAMPLES_DIR', 'CONFIG_EXPORT')
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# Start with unknown state
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state = Parse.NORMAL
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# Serial ID
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sid = 0
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# Loop through files and parse them line by line
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for fn, fk in filekey.items():
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with Path("Marlin", fn).open() as fileobj:
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section = 'none' # Current Settings section
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line_number = 0 # Counter for the line number of the file
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conditions = [] # Create a condition stack for the current file
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comment_buff = [] # A temporary buffer for comments
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options_json = '' # A buffer for the most recent options JSON found
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eol_options = False # The options came from end of line, so only apply once
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join_line = False # A flag that the line should be joined with the previous one
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line = '' # A line buffer to handle \ continuation
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last_added_ref = None # Reference to the last added item
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# Loop through the lines in the file
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for the_line in fileobj.readlines():
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line_number += 1
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# Clean the line for easier parsing
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the_line = the_line.strip()
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if join_line: # A previous line is being made longer
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line += (' ' if line else '') + the_line
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else: # Otherwise, start the line anew
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line, line_start = the_line, line_number
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# If the resulting line ends with a \, don't process now.
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# Strip the end off. The next line will be joined with it.
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join_line = line.endswith("\\")
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if join_line:
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line = line[:-1].strip()
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continue
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else:
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line_end = line_number
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defmatch = defgrep.match(line)
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# Special handling for EOL comments after a #define.
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# At this point the #define is already digested and inserted,
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# so we have to extend it
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if state == Parse.EOL_COMMENT:
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# If the line is not a comment, we're done with the EOL comment
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if not defmatch and the_line.startswith('//'):
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comment_buff.append(the_line[2:].strip())
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else:
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last_added_ref['comment'] = ' '.join(comment_buff)
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comment_buff = []
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state = Parse.NORMAL
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def use_comment(c, opt, sec, bufref):
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if c.startswith(':'): # If the comment starts with : then it has magic JSON
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d = c[1:].strip() # Strip the leading :
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cbr = c.rindex('}') if d.startswith('{') else c.rindex(']') if d.startswith('[') else 0
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if cbr:
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opt, cmt = c[1:cbr+1].strip(), c[cbr+1:].strip()
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if cmt != '': bufref.append(cmt)
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else:
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opt = c[1:].strip()
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elif c.startswith('@section'): # Start a new section
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sec = c[8:].strip()
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elif not c.startswith('========'):
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bufref.append(c)
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return opt, sec
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# In a block comment, capture lines up to the end of the comment.
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# Assume nothing follows the comment closure.
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if state in (Parse.BLOCK_COMMENT, Parse.GET_SENSORS):
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endpos = line.find('*/')
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if endpos < 0:
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cline = line
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else:
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cline, line = line[:endpos].strip(), line[endpos+2:].strip()
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# Temperature sensors are done
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if state == Parse.GET_SENSORS:
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options_json = f'[ {options_json[:-2]} ]'
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state = Parse.NORMAL
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# Strip the leading '*' from block comments
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if cline.startswith('*'): cline = cline[1:].strip()
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# Collect temperature sensors
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if state == Parse.GET_SENSORS:
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sens = re.match(r'^(-?\d+)\s*:\s*(.+)$', cline)
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if sens:
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s2 = sens[2].replace("'","''")
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options_json += f"{sens[1]}:'{s2}', "
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elif state == Parse.BLOCK_COMMENT:
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# Look for temperature sensors
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if cline == "Temperature sensors available:":
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state, cline = Parse.GET_SENSORS, "Temperature Sensors"
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options_json, section = use_comment(cline, options_json, section, comment_buff)
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# For the normal state we're looking for any non-blank line
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elif state == Parse.NORMAL:
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# Skip a commented define when evaluating comment opening
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st = 2 if re.match(r'^//\s*#define', line) else 0
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cpos1 = line.find('/*') # Start a block comment on the line?
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cpos2 = line.find('//', st) # Start an end of line comment on the line?
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# Only the first comment starter gets evaluated
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cpos = -1
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if cpos1 != -1 and (cpos1 < cpos2 or cpos2 == -1):
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cpos = cpos1
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comment_buff = []
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state = Parse.BLOCK_COMMENT
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eol_options = False
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elif cpos2 != -1 and (cpos2 < cpos1 or cpos1 == -1):
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cpos = cpos2
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# Comment after a define may be continued on the following lines
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if defmatch != None and cpos > 10:
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state = Parse.EOL_COMMENT
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comment_buff = []
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# Process the start of a new comment
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if cpos != -1:
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cline, line = line[cpos+2:].strip(), line[:cpos].strip()
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if state == Parse.BLOCK_COMMENT:
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# Strip leading '*' from block comments
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if cline.startswith('*'): cline = cline[1:].strip()
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else:
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# Expire end-of-line options after first use
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if cline.startswith(':'): eol_options = True
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# Buffer a non-empty comment start
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if cline != '':
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options_json, section = use_comment(cline, options_json, section, comment_buff)
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# If the line has nothing before the comment, go to the next line
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if line == '':
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options_json = ''
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continue
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# Parenthesize the given expression if needed
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def atomize(s):
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if s == '' \
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or re.match(r'^[A-Za-z0-9_]*(\([^)]+\))?$', s) \
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or re.match(r'^[A-Za-z0-9_]+ == \d+?$', s):
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return s
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return f'({s})'
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#
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# The conditions stack is an array containing condition-arrays.
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# Each condition-array lists the conditions for the current block.
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# IF/N/DEF adds a new condition-array to the stack.
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# ELSE/ELIF/ENDIF pop the condition-array.
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# ELSE/ELIF negate the last item in the popped condition-array.
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# ELIF adds a new condition to the end of the array.
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# ELSE/ELIF re-push the condition-array.
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#
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cparts = line.split()
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iselif, iselse = cparts[0] == '#elif', cparts[0] == '#else'
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if iselif or iselse or cparts[0] == '#endif':
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if len(conditions) == 0:
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raise Exception(f'no #if block at line {line_number}')
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# Pop the last condition-array from the stack
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prev = conditions.pop()
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if iselif or iselse:
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prev[-1] = '!' + prev[-1] # Invert the last condition
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if iselif: prev.append(atomize(line[5:].strip()))
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conditions.append(prev)
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elif cparts[0] == '#if':
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conditions.append([ atomize(line[3:].strip()) ])
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elif cparts[0] == '#ifdef':
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conditions.append([ f'defined({line[6:].strip()})' ])
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elif cparts[0] == '#ifndef':
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conditions.append([ f'!defined({line[7:].strip()})' ])
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# Handle a complete #define line
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elif defmatch != None:
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# Get the match groups into vars
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enabled, define_name, val = defmatch[1] == None, defmatch[3], defmatch[4]
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# Increment the serial ID
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sid += 1
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# Create a new dictionary for the current #define
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define_info = {
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'section': section,
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'name': define_name,
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'enabled': enabled,
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'line': line_start,
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'sid': sid
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}
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# Type is based on the value
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if val == '':
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value_type = 'switch'
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elif re.match(r'^(true|false)$', val):
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value_type = 'bool'
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val = val == 'true'
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elif re.match(r'^[-+]?\s*\d+$', val):
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value_type = 'int'
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val = int(val)
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elif re.match(r'[-+]?\s*(\d+\.|\d*\.\d+)([eE][-+]?\d+)?[fF]?', val):
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value_type = 'float'
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val = float(val.replace('f',''))
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else:
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value_type = 'string' if val[0] == '"' \
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else 'char' if val[0] == "'" \
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else 'state' if re.match(r'^(LOW|HIGH)$', val) \
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else 'enum' if re.match(r'^[A-Za-z0-9_]{3,}$', val) \
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else 'int[]' if re.match(r'^{(\s*[-+]?\s*\d+\s*(,\s*)?)+}$', val) \
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else 'float[]' if re.match(r'^{(\s*[-+]?\s*(\d+\.|\d*\.\d+)([eE][-+]?\d+)?[fF]?\s*(,\s*)?)+}$', val) \
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else 'array' if val[0] == '{' \
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else ''
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if val != '': define_info['value'] = val
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if value_type != '': define_info['type'] = value_type
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# Join up accumulated conditions with &&
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if conditions: define_info['requires'] = ' && '.join(sum(conditions, []))
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# If the comment_buff is not empty, add the comment to the info
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if comment_buff:
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full_comment = '\n'.join(comment_buff)
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# An EOL comment will be added later
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# The handling could go here instead of above
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if state == Parse.EOL_COMMENT:
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define_info['comment'] = ''
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else:
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define_info['comment'] = full_comment
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comment_buff = []
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# If the comment specifies units, add that to the info
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units = re.match(r'^\(([^)]+)\)', full_comment)
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if units:
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units = units[1]
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if units == 's' or units == 'sec': units = 'seconds'
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define_info['units'] = units
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# Set the options for the current #define
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if define_name == "MOTHERBOARD" and boards != '':
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define_info['options'] = boards
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elif options_json != '':
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define_info['options'] = options_json
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if eol_options: options_json = ''
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# Create section dict if it doesn't exist yet
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if section not in sch_out[fk]: sch_out[fk][section] = {}
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# If define has already been seen...
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if define_name in sch_out[fk][section]:
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info = sch_out[fk][section][define_name]
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if isinstance(info, dict): info = [ info ] # Convert a single dict into a list
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info.append(define_info) # Add to the list
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else:
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# Add the define dict with name as key
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sch_out[fk][section][define_name] = define_info
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if state == Parse.EOL_COMMENT:
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last_added_ref = define_info
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return sch_out
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def dump_json(schema:dict, jpath:Path):
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with jpath.open('w') as jfile:
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json.dump(schema, jfile, ensure_ascii=False, indent=2)
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def dump_yaml(schema:dict, ypath:Path):
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import yaml
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with ypath.open('w') as yfile:
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yaml.dump(schema, yfile, default_flow_style=False, width=120, indent=2)
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def main():
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try:
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schema = extract()
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except Exception as exc:
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print("Error: " + str(exc))
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schema = None
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if schema:
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# Get the first command line argument
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import sys
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if len(sys.argv) > 1:
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arg = sys.argv[1]
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else:
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arg = 'some'
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# JSON schema
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if arg in ['some', 'json', 'jsons']:
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print("Generating JSON ...")
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dump_json(schema, Path('schema.json'))
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# JSON schema (wildcard names)
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if arg in ['group', 'jsons']:
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group_options(schema)
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dump_json(schema, Path('schema_grouped.json'))
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# YAML
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if arg in ['some', 'yml', 'yaml']:
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try:
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import yaml
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except ImportError:
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print("Installing YAML module ...")
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import subprocess
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try:
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subprocess.run(['python3', '-m', 'pip', 'install', 'pyyaml'])
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import yaml
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except:
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print("Failed to install YAML module")
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return
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print("Generating YML ...")
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dump_yaml(schema, Path('schema.yml'))
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if __name__ == '__main__':
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main()
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