venv

8 files changed, 131 insertions, 0 deletions

diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/__init__.py b/venv/lib/python3.11/site-packages/faker/providers/sbn/__init__.py
new file mode 100644
index 0000000..f09eab0
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/__init__.py
@@ -0,0 +1,53 @@
+from typing import List, Tuple
+
+from faker.providers.sbn.rules import RegistrantRule
+
+from .. import BaseProvider
+from .rules import RULES
+from .sbn import SBN, SBN9
+
+
+class Provider(BaseProvider):
+    """Generates fake SBNs. These are the precursor to the ISBN and are
+    largely similar to ISBN-10.
+
+    See https://www.isbn-international.org/content/what-isbn for the
+    format of ISBNs. SBNs have no EAN prefix or Registration Group.
+    """
+
+    def _body(self) -> List[str]:
+        """Generate the information required to create an SBN"""
+
+        reg_pub_len: int = SBN.MAX_LENGTH - 1
+
+        # Generate a registrant/publication combination
+        reg_pub: str = self.numerify("#" * reg_pub_len)
+
+        # Use rules to separate the registrant from the publication
+        rules: List[RegistrantRule] = RULES
+        registrant, publication = self._registrant_publication(reg_pub, rules)
+        return [registrant, publication]
+
+    @staticmethod
+    def _registrant_publication(reg_pub: str, rules: List[RegistrantRule]) -> Tuple[str, str]:
+        """Separate the registration from the publication in a given
+        string.
+        :param reg_pub: A string of digits representing a registration
+            and publication.
+        :param rules: A list of RegistrantRules which designate where
+            to separate the values in the string.
+        :returns: A (registrant, publication) tuple of strings.
+        """
+        for rule in rules:
+            if rule.min <= reg_pub[:-1] <= rule.max:
+                reg_len = rule.registrant_length
+                break
+        else:
+            raise Exception("Registrant/Publication not found in registrant " "rule list.")
+        registrant, publication = reg_pub[:reg_len], reg_pub[reg_len:]
+        return registrant, publication
+
+    def sbn9(self, separator: str = "-") -> str:
+        registrant, publication = self._body()
+        sbn = SBN9(registrant, publication)
+        return sbn.format(separator)
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/__init__.cpython-311.pyc b/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/__init__.cpython-311.pyc
new file mode 100644
index 0000000..a3a9689
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/__init__.cpython-311.pyc
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/rules.cpython-311.pyc b/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/rules.cpython-311.pyc
new file mode 100644
index 0000000..ce6944d
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/rules.cpython-311.pyc
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/sbn.cpython-311.pyc b/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/sbn.cpython-311.pyc
new file mode 100644
index 0000000..8a80d34
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/__pycache__/sbn.cpython-311.pyc
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/en_US/__init__.py b/venv/lib/python3.11/site-packages/faker/providers/sbn/en_US/__init__.py
new file mode 100644
index 0000000..4261644
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/en_US/__init__.py
@@ -0,0 +1,5 @@
+from .. import Provider as SBNProvider
+
+
+class Provider(SBNProvider):
+    pass
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/en_US/__pycache__/__init__.cpython-311.pyc b/venv/lib/python3.11/site-packages/faker/providers/sbn/en_US/__pycache__/__init__.cpython-311.pyc
new file mode 100644
index 0000000..3e9eafb
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/en_US/__pycache__/__init__.cpython-311.pyc
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/rules.py b/venv/lib/python3.11/site-packages/faker/providers/sbn/rules.py
new file mode 100644
index 0000000..aaf32fd
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/rules.py
@@ -0,0 +1,24 @@
+"""
+This module exists solely to figure how long a registrant/publication
+number may be within an SBN. It's the same as the ISBN implementation
+for ean 978, reg_group 0.
+"""
+
+from collections import namedtuple
+from typing import List
+
+RegistrantRule = namedtuple("RegistrantRule", ["min", "max", "registrant_length"])
+
+# Structure: RULES = [Rule1, Rule2, ...]
+RULES: List[RegistrantRule] = [
+    RegistrantRule("0000000", "1999999", 2),
+    RegistrantRule("2000000", "2279999", 3),
+    RegistrantRule("2280000", "2289999", 4),
+    RegistrantRule("2290000", "6479999", 3),
+    RegistrantRule("6480000", "6489999", 7),
+    RegistrantRule("6490000", "6999999", 3),
+    RegistrantRule("7000000", "8499999", 4),
+    RegistrantRule("8500000", "8999999", 5),
+    RegistrantRule("9000000", "9499999", 6),
+    RegistrantRule("9500000", "9999999", 7),
+]
diff --git a/venv/lib/python3.11/site-packages/faker/providers/sbn/sbn.py b/venv/lib/python3.11/site-packages/faker/providers/sbn/sbn.py
new file mode 100644
index 0000000..070f799
--- /dev/null
+++ b/venv/lib/python3.11/site-packages/faker/providers/sbn/sbn.py
@@ -0,0 +1,49 @@
+"""
+This module is responsible for generating the check digit and formatting
+SBN numbers.
+"""
+from typing import Any, Optional
+
+
+class SBN:
+    MAX_LENGTH = 9
+
+    def __init__(
+        self,
+        registrant: Optional[str] = None,
+        publication: Optional[str] = None,
+    ) -> None:
+        self.registrant = registrant
+        self.publication = publication
+
+
+class SBN9(SBN):
+    def __init__(self, *args: Any, **kwargs: Any) -> None:
+        super().__init__(*args, **kwargs)
+        self.check_digit = self._check_digit()
+
+    def _check_digit(self) -> str:
+        """Calculate the check digit for SBN-9.
+        SBNs use the same check digit calculation as ISBN. See
+        https://en.wikipedia.org/wiki/International_Standard_Book_Number
+                for calculation. Only modification is weights range from 1 to 9
+                instead of 1 to 10.
+        """
+        weights = range(1, 9)
+        body = "".join([part for part in [self.registrant, self.publication] if part is not None])
+        remainder = sum(int(b) * w for b, w in zip(body, weights)) % 11
+        check_digit = "X" if remainder == 10 else str(remainder)
+        return str(check_digit)
+
+    def format(self, separator: str = "") -> str:
+        return separator.join(
+            [
+                part
+                for part in [
+                    self.registrant,
+                    self.publication,
+                    self.check_digit,
+                ]
+                if part is not None
+            ]
+        )