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lpython_builtin.py
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1014 lines (865 loc) · 20.1 KB
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from lpython import (i8, i16, i32, i64, f32, f64, c32, c64, overload, u8,
u16, u32, u64)
#from sys import exit
#: abs() as a generic procedure.
#: supported types for argument:
#: i8, i16, i32, i64, f32, f64, bool, c32, c64
@overload
def abs(x: f64) -> f64:
"""
Return the absolute value of `x`.
"""
result: f64
if x >= 0.0:
result = x
else:
result = -x
return result
@overload
def abs(x: f32) -> f32:
if x >= f32(0.0):
return x
else:
return -x
@overload
def abs(x: i8) -> i8:
if x >= i8(0):
return x
else:
return -x
@overload
def abs(x: i16) -> i16:
if x >= i16(0):
return x
else:
return -x
@overload
def abs(x: i32) -> i32:
if x >= 0:
return x
else:
return -x
@overload
def abs(x: i64) -> i64:
if x >= i64(0):
return x
else:
return -x
@overload
def abs(b: bool) -> i32:
if b:
return 1
else:
return 0
@overload
def abs(c: c32) -> f32:
a: f32
b: f32
a = c.real
b = _lfortran_caimag(c)
return f32((a**f32(2) + b**f32(2))**f32(1/2))
@overload
def abs(c: c64) -> f64:
a: f64
b: f64
a = c.real
b = _lfortran_zaimag(c)
return (a**2.0 + b**2.0)**(1/2)
@interface
def len(s: str) -> i32:
"""
Return the length of the string `s`.
"""
pass
#: pow() as a generic procedure.
#: supported types for arguments:
#: (i32, i32), (i64, i64), (f64, f64),
#: (f32, f32), (i32, f64), (f64, i32),
#: (i32, f32), (f32, i32), (bool, bool), (c32, i32)
@overload
def pow(x: i32, y: i32) -> f64:
"""
Returns x**y.
"""
return f64(x**y)
@overload
def pow(x: i64, y: i64) -> f64:
return f64(x**y)
@overload
def pow(x: f32, y: f32) -> f32:
return x**y
@overload
def pow(x: f64, y: f64) -> f64:
"""
Returns x**y.
"""
return x**y
@overload
def pow(x: i32, y: f32) -> f32:
return f32(x)**y
@overload
def pow(x: f32, y: i32) -> f32:
return x**f32(y)
@overload
def pow(x: i32, y: f64) -> f64:
return f64(x)**y
@overload
def pow(x: f64, y: i32) -> f64:
return x**f64(y)
@overload
def pow(x: bool, y: bool) -> i32:
if y and not x:
return 0
return 1
@overload
def pow(c: c32, y: i32) -> c32:
return c**c32(y)
# sum
# supported data types: i32, i64, f32, f64
@overload
def sum(arr: list[i32]) -> i32:
"""
Sum of the elements of `arr`.
"""
sum: i32
sum = 0
i: i32
for i in range(len(arr)):
sum += arr[i]
return sum
@overload
def sum(arr: list[i64]) -> i64:
"""
Sum of the elements of `arr`.
"""
sum: i64
sum = i64(0)
i: i32
for i in range(len(arr)):
sum += arr[i]
return sum
@overload
def sum(arr: list[f32]) -> f32:
"""
Sum of the elements of `arr`.
"""
sum: f32
sum = f32(0.0)
i: i32
for i in range(len(arr)):
sum += arr[i]
return sum
@overload
def sum(arr: list[f64]) -> f64:
"""
Sum of the elements of `arr`.
"""
sum: f64
sum = 0.0
i: i32
for i in range(len(arr)):
sum += arr[i]
return sum
def bin(n: i32) -> str:
"""
Returns the binary representation of an integer `n`.
"""
if n == 0:
return '0b0'
prep: str
prep = '0b'
n_: i32
n_ = n
if n_ < 0:
n_ = -n_
prep = '-0b'
res: str
res = ''
if (n_ - (n_ // 2)*2) == 0:
res += '0'
else:
res += '1'
while n_ > 1:
n_ = (n_ // 2)
if (n_ - (n_ // 2)*2) == 0:
res += '0'
else:
res += '1'
return prep + res[::-1]
def hex(n: i32) -> str:
"""
Returns the hexadecimal representation of an integer `n`.
"""
hex_values: list[str]
hex_values = ['0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f']
if n == 0:
return '0x0'
prep: str
prep = '0x'
n_: i32
n_ = n
if n_ < 0:
prep = '-0x'
n_ = -n_
res: str
res = ""
remainder: i32
while n_ > 0:
remainder = n_ - (n_ // 16)*16
n_ -= remainder
n_ = (n_ // 16)
res += hex_values[remainder]
return prep + res[::-1]
def oct(n: i32) -> str:
"""
Returns the octal representation of an integer `n`.
"""
_values: list[str]
_values = ['0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f']
if n == 0:
return '0o0'
prep: str
prep = '0o'
n_: i32
n_ = n
if n_ < 0:
prep = '-0o'
n_ = -n_
res: str
res = ""
remainder: i32
while n_ > 0:
remainder = n_ - (n_ // 8)*8
n_ -= remainder
n_ = (n_ // 8)
res += _values[remainder]
return prep + res[::-1]
#: round() as a generic procedure.
#: supported types for argument:
#: i8, i16, i32, i64, f32, f64, bool
@overload
def round(value: f64) -> i32:
"""
Rounds a floating point number to the nearest integer.
"""
i: i32
i = i32(value)
f: f64
f = abs(value - f64(i))
if f < 0.5:
return i
elif f > 0.5:
return i + 1
else:
if i - (i // 2) * 2 == 0:
return i
else:
return i + 1
@overload
def round(value: f32) -> i32:
i: i32
i = i32(value)
f: f64
f = f64(abs(value - f32(i)))
if f < 0.5:
return i
elif f > 0.5:
return i + 1
else:
if i - (i // 2) * 2 == 0:
return i
else:
return i + 1
@overload
def round(value: i32) -> i32:
return value
@overload
def round(value: i64) -> i64:
return value
@overload
def round(value: i8) -> i8:
return value
@overload
def round(value: i16) -> i16:
return value
@overload
def round(b: bool) -> i32:
return abs(b)
#: complex() as a generic procedure.
#: supported types for arguments:
#: (f64, f64), (f32, f64), (f64, f32), (f32, f32),
#: (i32, i32), (i64, i64), (i32, i64), (i64, i32)
@interface
@overload
def complex() -> c64:
return c64(0) + c64(0)*1j
@interface
@overload
def complex(x: f64) -> c64:
return c64(x) + c64(0)*1j
@interface
@overload
def complex(x: i32) -> c32:
return c32(x) + c32(0)*c32(1j)
@interface
@overload
def complex(x: f32) -> c32:
return c32(x) + c32(0)*c32(1j)
@interface
@overload
def complex(x: i64) -> c64:
return c64(x) + c64(0)*1j
@interface
@overload
def complex(x: f64, y: f64) -> c64:
"""
Return a complex number with the given real and imaginary parts.
"""
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: f32, y: f32) -> c32:
return c32(x) + c32(y)*c32(1j)
@interface
@overload
def complex(x: f32, y: f64) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: f64, y: f32) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: i32, y: i32) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: i64, y: i64) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: i32, y: i64) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: i64, y: i32) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: i32, y: f64) -> c64:
return c64(x) + c64(y)*1j
@interface
@overload
def complex(x: f64, y: i32) -> c64:
return c64(x) + c64(y)*1j
@interface
def divmod(x: i32, y: i32) -> tuple[i32, i32]:
"""
Return the tuple (x//y, x%y).
"""
if y == 0:
raise ZeroDivisionError("Integer division or modulo by zero not possible")
t: tuple[i32, i32]
t = ((x // y), _mod(x, y))
return t
def lbound(x: i32[:], dim: i32) -> i32:
pass
def ubound(x: i32[:], dim: i32) -> i32:
pass
@ccall
def _lfortran_caimag(x: c32) -> f32:
pass
@ccall
def _lfortran_zaimag(x: c64) -> f64:
pass
@overload
def _lpython_imag(x: c64) -> f64:
return _lfortran_zaimag(x)
@overload
def _lpython_imag(x: c32) -> f32:
return _lfortran_caimag(x)
@overload
def _mod(a: i8, b: i8) -> i8:
return a - (a // b)*b
@overload
def _mod(a: i16, b: i16) -> i16:
return a - (a // b)*b
@overload
def _mod(a: i32, b: i32) -> i32:
return a - (a // b)*b
@overload
def _mod(a: u8, b: u8) -> u8:
return a - (a // b)*b
@overload
def _mod(a: u16, b: u16) -> u16:
return a - (a // b)*b
@overload
def _mod(a: u32, b: u32) -> u32:
return a - (a // b)*b
@overload
def _mod(a: f32, b: f32) -> f32:
return a - (a // b)*b
@overload
def _mod(a: u64, b: u64) -> u64:
return a - (a // b)*b
@overload
def _mod(a: i64, b: i64) -> i64:
return a - (a // b)*b
@overload
def _mod(a: f64, b: f64) -> f64:
return a - (a // b)*b
@overload
def max(a: i32, b: i32) -> i32:
if a > b:
return a
else:
return b
@overload
def max(a: i32, b: i32, c: i32) -> i32:
res: i32 = a
if b > res:
res = b
if c > res:
res = c
return res
@overload
def max(a: f64, b: f64, c: f64) -> f64:
res: f64 =a
if b - res > 1e-6:
res = b
if c - res > 1e-6:
res = c
return res
@overload
def max(a: f64, b: f64) -> f64:
if a - b > 1e-6:
return a
else:
return b
@overload
def min(a: i32, b: i32) -> i32:
if a < b:
return a
else:
return b
@overload
def min(a: i32, b: i32, c: i32) -> i32:
res: i32 = a
if b < res:
res = b
if c < res:
res = c
return res
@overload
def min(a: f64, b: f64, c: f64) -> f64:
res: f64 = a
if res - b > 1e-6:
res = b
if res - c > 1e-6:
res = c
return res
@overload
def min(a: f64, b: f64) -> f64:
if b - a > 1e-6:
return a
else:
return b
@overload
def _floor(x: f64) -> i64:
r: i64
r = int(x)
if x >= f64(0) or x == f64(r):
return r
return r - i64(1)
@overload
def _floor(x: f32) -> i32:
r: i32
r = i32(x)
if x >= f32(0) or x == f32(r):
return r
return r - 1
@overload
def _mod(a: i32, b: i32) -> i32:
"""
Returns a%b
"""
return a - i32(_floor(a/b))*b
@overload
def _mod(a: i64, b: i64) -> i64:
"""
Returns a%b
"""
r: i64
r = _floor(a/b)
return a - r*b
@overload
def pow(x: i32, y: i32, z: i32) -> i32:
"""
Return `x` raised to the power `y`.
"""
if y < 0:
raise ValueError('y should be nonnegative')
result: i32
result = _mod(x**y, z)
return result
@overload
def pow(x: i64, y: i64, z: i64) -> i64:
"""
Return `x` raised to the power `y`.
"""
if y < i64(0):
raise ValueError('y should be nonnegative')
result: i64
result = _mod(x**y, z)
return result
@overload
def _lpython_str_capitalize(x: str) -> str:
if len(x) == 0:
return x
i:str
res:str = ""
for i in x:
if ord(i) >= 65 and ord(i) <= 90: # Check if uppercase
res += chr(ord(i) + 32) # Convert to lowercase using ASCII values
else:
res += i
val: i32
val = ord(res[0])
if val >= ord('a') and val <= ord('z'):
val -= 32
res = chr(val) + res[1:]
return res
@overload
def _lpython_str_count(s: str, sub: str) -> i32:
s_len :i32; sub_len :i32; flag: bool; _len: i32;
count: i32; i: i32;
lps: list[i32] = []
s_len = len(s)
sub_len = len(sub)
if sub_len == 0:
return s_len + 1
count = 0
for i in range(sub_len):
lps.append(0)
i = 1
_len = 0
while i < sub_len:
if sub[i] == sub[_len]:
_len += 1
lps[i] = _len
i += 1
else:
if _len != 0:
_len = lps[_len - 1]
else:
lps[i] = 0
i += 1
j: i32
j = 0
i = 0
while (s_len - i) >= (sub_len - j):
if sub[j] == s[i]:
i += 1
j += 1
if j == sub_len:
count += 1
j = lps[j - 1]
elif i < s_len and sub[j] != s[i]:
if j != 0:
j = lps[j - 1]
else:
i = i + 1
return count
@overload
def _lpython_str_lower(x: str) -> str:
res: str
res = ""
i:str
for i in x:
if ord('A') <= ord(i) and ord(i) <= ord('Z'):
res += chr(ord(i) +32)
else:
res += i
return res
@overload
def _lpython_str_upper(x: str) -> str:
res: str
res = ""
i:str
for i in x:
if ord('a') <= ord(i) and ord(i) <= ord('z'):
res += chr(ord(i) -32)
else:
res += i
return res
@overload
def _lpython_str_join(s:str, lis:list[str]) -> str:
if len(lis) == 0: return ""
res:str = lis[0]
i:i32
for i in range(1, len(lis)):
res += s + lis[i]
return res
def _lpython_str_isalpha(s: str) -> bool:
ch: str
if len(s) == 0: return False
for ch in s:
ch_ord: i32 = ord(ch)
if 65 <= ch_ord and ch_ord <= 90:
continue
if 97 <= ch_ord and ch_ord <= 122:
continue
return False
return True
def _lpython_str_title(s: str) -> str:
result: str = ""
capitalize_next: bool = True
ch: str
for ch in s:
ch_ord: i32 = ord(ch)
if ch_ord >= 97 and ch_ord <= 122:
if capitalize_next:
result += chr(ord(ch) - ord('a') + ord('A'))
capitalize_next = False
else:
result += ch
elif ch_ord >= 65 and ch_ord <= 90:
if capitalize_next:
result += ch
capitalize_next = False
else:
result += chr(ord(ch) + ord('a') - ord('A'))
else:
result += ch
capitalize_next = True
return result
def _lpython_str_istitle(s: str) -> bool:
length: i32 = len(s)
if length == 0:
return False # Empty string is not in title case
word_start: bool = True # Flag to track the start of a word
ch: str
only_whitespace: bool = True
for ch in s:
if ch.isalpha() and (ord('A') <= ord(ch) and ord(ch) <= ord('Z')):
only_whitespace = False
if word_start:
word_start = False
else:
return False # Found an uppercase character in the middle of a word
elif ch.isalpha() and (ord('a') <= ord(ch) and ord(ch) <= ord('z')):
only_whitespace = False
if word_start:
return False # Found a lowercase character in the middle of a word
word_start = False
else:
word_start = True
return True if not only_whitespace else False
@overload
def _lpython_str_find(s: str, sub: str) -> i32:
s_len :i32; sub_len :i32; flag: bool; _len: i32;
res: i32; i: i32;
lps: list[i32] = []
s_len = len(s)
sub_len = len(sub)
flag = False
res = -1
if s_len == 0 or sub_len == 0:
return 0 if sub_len == 0 or (sub_len == s_len) else -1
for i in range(sub_len):
lps.append(0)
i = 1
_len = 0
while i < sub_len:
if sub[i] == sub[_len]:
_len += 1
lps[i] = _len
i += 1
else:
if _len != 0:
_len = lps[_len - 1]
else:
lps[i] = 0
i += 1
j: i32
j = 0
i = 0
while (s_len - i) >= (sub_len - j) and not flag:
if sub[j] == s[i]:
i += 1
j += 1
if j == sub_len:
res = i- j
flag = True
j = lps[j - 1]
elif i < s_len and sub[j] != s[i]:
if j != 0:
j = lps[j - 1]
else:
i = i + 1
return res
def _lpython_str_rstrip(x: str) -> str:
ind: i32
ind = len(x) - 1
while ind >= 0 and x[ind] == ' ':
ind -= 1
return x[0: ind + 1]
@overload
def _lpython_str_lstrip(x: str) -> str:
ind :i32
ind = 0
while ind < len(x) and x[ind] == ' ':
ind += 1
return x[ind :len(x)]
@overload
def _lpython_str_strip(x: str) -> str:
res :str
res = _lpython_str_lstrip(x)
res = _lpython_str_rstrip(res)
return res
@overload
def _lpython_str_split(x: str) -> list[str]:
sep: str = ' '
res: list[str] = []
start:i32 = 0
ind: i32
x_strip: str = _lpython_str_strip(x)
if (x_strip == ""):
return res
while True:
while (start < len(x_strip) and x_strip[start] == ' '):
start += 1
ind = _lpython_str_find(x_strip[start:len(x_strip)], sep)
if ind == -1:
res.append(x_strip[start:len(x_strip)])
break
else:
res.append(x_strip[start:start + ind])
start += ind + len(sep)
return res
@overload
def _lpython_str_split(x: str, sep:str) -> list[str]:
if len(sep) == 0:
raise ValueError('empty separator')
res: list[str] = []
start:i32 = 0
ind: i32
while True:
ind = _lpython_str_find(x[start:len(x)], sep)
if ind == -1:
res.append(x[start:len(x)])
break
else:
res.append(x[start:start + ind])
start += ind + len(sep)
return res
@overload
def _lpython_str_swapcase(s: str) -> str:
res :str = ""
cur: str
for cur in s:
if ord(cur) >= ord('a') and ord(cur) <= ord('z'):
res += chr(ord(cur) - ord('a') + ord('A'))
elif ord(cur) >= ord('A') and ord(cur) <= ord('Z'):
res += chr(ord(cur) - ord('A') + ord('a'))
else:
res += cur
return res
@overload
def _lpython_str_startswith(s: str ,sub: str) -> bool:
res :bool
res = not (len(s) == 0 and len(sub) > 0)
i: i32; j: i32
i = 0; j = 0
while (i < len(s)) and ((j < len(sub)) and res):
res = res and (s[i] == sub[j])
i += 1; j+=1
if res:
res = res and (j == len(sub))
return res
@overload
def _lpython_str_endswith(s: str, suffix: str) -> bool:
if(len(suffix) > len(s)):
return False
i : i32
i = 0
while(i < len(suffix)):
if(suffix[len(suffix) - i - 1] != s[len(s) - i - 1]):
return False
i += 1
return True
@overload
def _lpython_str_partition(s:str, sep: str) -> tuple[str, str, str]:
"""
Returns a 3-tuple splitted around seperator
"""
if len(s) == 0:
raise ValueError('empty string cannot be partitioned')
if len(sep) == 0:
raise ValueError('empty separator')
res : tuple[str, str, str]
ind : i32
ind = _lpython_str_find(s, sep)
if ind == -1:
res = (s, "", "")
else:
res = (s[0:ind], sep, s[ind+len(sep): len(s)])
return res
@overload
def _lpython_str_islower(s: str) -> bool:
is_cased_present: bool
is_cased_present = False
i:str
for i in s:
if (ord(i) >= 97 and ord(i) <= 122) or (ord(i) >= 65 and ord(i) <= 90): # Implies it is a cased letter
is_cased_present = True
if not(ord(i) >= 97 and ord(i) <= 122): # Not lowercase
return False
return is_cased_present
@overload
def _lpython_str_isupper(s: str) -> bool:
is_cased_present: bool
is_cased_present = False
i:str
for i in s:
if (ord(i) >= 97 and ord(i) <= 122) or (ord(i) >= 65 and ord(i) <= 90): # Implies it is a cased letter
is_cased_present = True
if not(ord(i) >= 65 and ord(i) <= 90): # Not lowercase
return False
return is_cased_present
@overload
def _lpython_str_isdecimal(s: str) -> bool:
if len(s) == 0:
return False
i:str
for i in s:
if (ord(i) < 48 or ord(i) > 57): # Implies it is not a digit
return False
return True
@overload
def _lpython_str_isascii(s: str) -> bool:
if len(s) == 0:
return True
i: str
for i in s:
if ord(i) < 0 or ord(i) > 127:
return False
return True
def _lpython_str_isspace(s:str) -> bool:
if len(s) == 0:
return False
ch: str