feat: Esqueleto do parser feito

feat: Parse do tipo 1 implementado
This commit is contained in:
2025-10-30 19:37:07 -01:00
parent a04cefb058
commit 1f7075041c
2 changed files with 137 additions and 0 deletions

View File

@@ -14,6 +14,9 @@ First, let's represent the data using Python's Pandas module and implement CRUD
- T1 a T4 -> 10 de novembro - T1 a T4 -> 10 de novembro
- (a definir) - (a definir)
## Apontamentos
Dados parecem estar no formato [Nordic](https://seisan.info/v13/node259.html)
## Bibliografia ## Bibliografia
- [Pandas lib](https://pandas.pydata.org/docs) - [Pandas lib](https://pandas.pydata.org/docs)

134
parser.py
View File

@@ -0,0 +1,134 @@
from collections import defaultdict
from datetime import datetime
def is_blank(l: str) -> bool:
return len(l.strip(" ")) == 0
def parse():
fp = open("dados.txt")
data = [l for l in fp.read().split("\n")]
chunks = boundaries(data)
for c in chunks:
parse_chunk(data[c[0]:c[1]])
fp.close()
def boundaries(data: list[str]):
boundaries = []
s = None
for (idx,l) in enumerate(data):
if s is None:
if not is_blank(l):
s = idx
else:
if is_blank(l):
boundaries.append((s,idx))
s = None
return boundaries
def parse_chunk(chunk_lines: list[str]):
header = None
for (idx, l) in enumerate(chunk_lines):
if l[-1] == " ":
header = idx-1
break
parse_header(chunk_lines[:header])
def parse_header(headers: list[str]):
h = defaultdict(list)
for line in headers:
match line[-1]:
case "1":
h[1].append(line)
break
case "2":
h[2].append(line)
break
case "3":
h[3].append(line)
break
case "5":
h[5].append(line)
break
case "6":
h[6].append(line)
break
case "E":
h["E"].append(line)
break
case "I":
h["I"].append(line)
break
case _:
raise NotImplemented
for (k,v) in h.items():
if len(v) != 0:
FUNCS[k](v)
def parse_type_1(data: list[str]):
aux = data[0]
y = int(aux[1:5])
mo = int(aux[6:8])
d = int(aux[8:10])
h = int(aux[11:13])
m = int(aux[13:15])
s = int(aux[16:18])
mil = int(aux[19]) * 10**5
dt = datetime(y,mo,d,h,m,s,mil)
dist_ind = aux[21]
eId = aux[22]
lat = float(aux[23:30])
long = float(aux[30:38])
depth = float(aux[38:43])
rep_ag = aux[45:48]
hypo = {"dt": dt.isoformat(), "Distance Indicator": dist_ind, "Event ID": eId, "Lat": lat, "Long": long, "Depth": depth, "Agency": rep_ag, "magnitudes": list()}
for (idx, l) in enumerate(data):
hypo["magnitudes"] = hypo["magnitudes"] + parse_mag(l, idx)
print(hypo)
return hypo
def parse_mag(line: str, idx: int) -> list:
magnitudes = []
base = 55
while base < 80:
m = line[base:base+4]
mt = line[base+4]
if is_blank(m):
break
magnitudes.append({"M": m, "T": mt})
base += 8
return magnitudes
def parse_type_2(data: list[str]):
pass
def parse_type_3(data: list[str]):
pass
def parse_type_5(data: list[str]):
pass
def parse_type_6(data: list[str]):
pass
def parse_type_e(data: list[str]):
pass
def parse_type_f(data: list[str]):
pass
FUNCS = {1: parse_type_1, 2: parse_type_2, 3: parse_type_3, 5: parse_type_5, 6: parse_type_6, "E": parse_type_e, "F": parse_type_f}
parse()