mirror of https://github.com/arendst/Tasmota.git
106 lines
3.1 KiB
Python
106 lines
3.1 KiB
Python
import re
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import sys
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lv_module_file = "lv_gpio_enum.h"
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out_prefix = "../../tasmota/berry/include/"
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be_gpio_defines = "be_gpio_defines.h"
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lv_module = []
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def try_int(s):
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try:
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v = int(s)
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return v
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except ValueError:
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return None
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# parse module file containing numerical constants
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with open(lv_module_file) as f:
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for l_raw in f:
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l_raw = l_raw.strip(" \t\n\r") # remove leading or trailing spaces
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if l_raw.startswith("//"):
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lv_module.append( [ None, l_raw ] ) # if key in None then add comment line
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l_raw = re.sub(r'//.*$', '', l_raw) # remove trailing comments
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l_raw = re.sub(r'\s+', '', l_raw) # remove all spaces
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l_raw = re.sub(r',.*$', '', l_raw) # remove comma and anything after it
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if (len(l_raw) == 0): continue
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k_v = l_raw.split("=")
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if len(k_v) > 2:
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print(f"Error: cannot match {l_raw}")
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continue
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# extract the key name
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k = k_v[0]
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if k.startswith("_"):
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continue # skip any label starting with '_'
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k = re.sub(r'^LV_', '', k) # remove remove any LV_ prefix
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v = None
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if len(k_v) == 2: # value is included
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v = k_v[1]
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if k is None or v is None: continue # we skip if key is void or value is void
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if not k.isidentifier():
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print(f"Error: {k} is not an identifier")
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continue
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lv_module.append( [k, v] ) # keep as string or None
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sys.stdout = open(out_prefix + be_gpio_defines, 'w')
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print("/********************************************************************")
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print(" * Generated code, don't edit")
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print(" * ")
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print(" * The keys in the array belox must be in lexicographic order")
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print(" * ")
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print(" * Generated by: `python3 gpio_convert.py`")
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print(" *******************************************************************/")
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print("""
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const be_const_member_t lv_gpio_constants[] = {
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""")
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lv_module2 = {}
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for k_v in lv_module:
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(k,v) = k_v
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if k is not None:
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lv_module2[k] = v
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# print the enums, symbols and functions
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# Ex: { "ALIGN_BOTTOM_LEFT", LV_ALIGN_BOTTOM_LEFT },
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#
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# Encoding:
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# 1. `COLOR_WHITE=0xFFFFFF` enum with explicit value
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# 2. `LV_EVENT_ALL` enum with implicit value with same name resolved by C compiler
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# 3. `$SYMBOL_OK="\xef\x80\x8c"` if starts with `$` then it's a string
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# 4. `&seg7_font=lv0_load_seg7_font` if starts with `&` then it's a native function
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#
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# We need to sort ignoring the first char if it's not a letter
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for k in sorted(lv_module2):
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v = lv_module2[k]
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# check the type of the value
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# if first char is '"' then it's a string and prefix with '$'
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# if first char is '&' then it's a function and prefix with '&'
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# if no value, then it's an enum, prefix with `LV_`
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# otherwise it's an int, leave if unchanged
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if v is not None:
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v_prefix = ""
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if v[0] == '"': v_prefix = "$"
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if v[0] == '&': v_prefix = "&"
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print(f" {{ \"{v_prefix}{k}\", (int32_t) {v} }},")
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else:
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print(f" {{ \"{k}\", {k} }},")
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print("""
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};
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const size_t lv_gpio_constants_size = sizeof(lv_gpio_constants)/sizeof(lv_gpio_constants[0]);
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""")
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print("/********************************************************************/")
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sys.stdout.close()
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